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1#***************************************************************************
2#                                  _   _ ____  _
3#  Project                     ___| | | |  _ \| |
4#                             / __| | | | |_) | |
5#                            | (__| |_| |  _ <| |___
6#                             \___|\___/|_| \_\_____|
7#
8# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9#
10# This software is licensed as described in the file COPYING, which
11# you should have received as part of this distribution. The terms
12# are also available at https://curl.se/docs/copyright.html.
13#
14# You may opt to use, copy, modify, merge, publish, distribute and/or sell
15# copies of the Software, and permit persons to whom the Software is
16# furnished to do so, under the terms of the COPYING file.
17#
18# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19# KIND, either express or implied.
20#
21# SPDX-License-Identifier: curl
22#
23###########################################################################
24# by Tetetest and Sukender (Benoit Neil)
25
26# Note: By default this CMake build script detects the version of some
27# dependencies using `check_symbol_exists`. Those checks do not work in
28# the case that both CURL and its dependency are included as sub-projects
29# in a larger build using `FetchContent`. To support that case, additional
30# variables may be defined by the parent project, ideally in the "extra"
31# find package redirect file:
32# https://cmake.org/cmake/help/latest/module/FetchContent.html#integrating-with-find-package
33#
34# The following variables are available:
35#   HAVE_SSL_SET0_WBIO: `SSL_set0_wbio` present in OpenSSL/wolfSSL
36#   HAVE_OPENSSL_SRP: `SSL_CTX_set_srp_username` present in OpenSSL/wolfSSL
37#   HAVE_GNUTLS_SRP: `gnutls_srp_verifier` present in GnuTLS
38#   HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT: `SSL_set_quic_use_legacy_codepoint` present in OpenSSL/wolfSSL
39#   HAVE_QUICHE_CONN_SET_QLOG_FD: `quiche_conn_set_qlog_fd` present in quiche
40#   HAVE_ECH: ECH API checks for OpenSSL, BoringSSL or wolfSSL
41#
42# For each of the above variables, if the variable is DEFINED (either
43# to ON or OFF), the symbol detection is skipped.  If the variable is
44# NOT DEFINED, the symbol detection is performed.
45
46cmake_minimum_required(VERSION 3.7...3.16 FATAL_ERROR)
47message(STATUS "Using CMake version ${CMAKE_VERSION}")
48
49# Collect command-line arguments for buildinfo.txt.
50# Must reside at the top of the script to work as expected.
51set(_cmake_args "")
52if(NOT "$ENV{CURL_BUILDINFO}$ENV{CURL_CI}$ENV{CI}" STREQUAL "")
53  get_cmake_property(_cache_vars CACHE_VARIABLES)
54  foreach(_cache_var IN ITEMS ${_cache_vars})
55    get_property(_cache_var_helpstring CACHE ${_cache_var} PROPERTY HELPSTRING)
56    if(_cache_var_helpstring STREQUAL "No help, variable specified on the command line.")
57      get_property(_cache_var_type CACHE ${_cache_var} PROPERTY TYPE)
58      get_property(_cache_var_value CACHE ${_cache_var} PROPERTY VALUE)
59      if(_cache_var_type STREQUAL "UNINITIALIZED")
60        set(_cache_var_type)
61      else()
62        set(_cache_var_type ":${_cache_var_type}")
63      endif()
64      set(_cmake_args "${_cmake_args} -D${_cache_var}${_cache_var_type}=\"${_cache_var_value}\"")
65    endif()
66  endforeach()
67endif()
68
69set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
70include(Utilities)
71include(Macros)
72include(CMakeDependentOption)
73include(CheckCCompilerFlag)
74
75file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/include/curl/curlver.h" _curl_version_h_contents REGEX "#define LIBCURL_VERSION( |_NUM )")
76string(REGEX MATCH "#define LIBCURL_VERSION \"[^\"]*" _curl_version ${_curl_version_h_contents})
77string(REGEX REPLACE "[^\"]+\"" "" _curl_version ${_curl_version})
78string(REGEX MATCH "#define LIBCURL_VERSION_NUM 0x[0-9a-fA-F]+" _curl_version_num ${_curl_version_h_contents})
79string(REGEX REPLACE "[^0]+0x" "" _curl_version_num ${_curl_version_num})
80unset(_curl_version_h_contents)
81
82message(STATUS "curl version=[${_curl_version}]")
83
84string(REGEX REPLACE "([0-9]+\.[0-9]+\.[0-9]+).+" "\\1" _curl_version_sem "${_curl_version}")
85project(CURL
86  VERSION "${_curl_version_sem}"
87  LANGUAGES C)
88
89# CMake does not recognize some targets accurately. Touch up configuration manually as a workaround.
90if(WINDOWS_STORE AND MINGW)  # mingw UWP build
91  # CMake (as of v3.31.2) gets confused and applies the MSVC rc.exe command-line
92  # template to windres. Reset it to the windres template via 'Modules/Platform/Windows-windres.cmake':
93  set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <DEFINES> <INCLUDES> <FLAGS> <SOURCE> <OBJECT>")
94elseif(DOS AND CMAKE_COMPILER_IS_GNUCC)  # DJGPP
95  set(CMAKE_STATIC_LIBRARY_PREFIX "lib")
96  set(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
97  set(CMAKE_FIND_LIBRARY_PREFIXES "lib")
98  set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
99endif()
100
101# Fill platform level variable when using CMake's built-in Android configuration
102if(ANDROID AND NOT DEFINED ANDROID_PLATFORM_LEVEL AND NOT CMAKE_SYSTEM_VERSION EQUAL 1)
103  set(ANDROID_PLATFORM_LEVEL "${CMAKE_SYSTEM_VERSION}")
104endif()
105
106set(_target_flags "")
107if(APPLE)
108  set(_target_flags "${_target_flags} APPLE")
109endif()
110if(UNIX)
111  set(_target_flags "${_target_flags} UNIX")
112endif()
113if(BSD)
114  set(_target_flags "${_target_flags} BSD")
115endif()
116if(ANDROID)
117  set(_target_flags "${_target_flags} ANDROID-${ANDROID_PLATFORM_LEVEL}")
118endif()
119if(WIN32)
120  set(_target_flags "${_target_flags} WIN32")
121endif()
122if(WINDOWS_STORE)
123  set(_target_flags "${_target_flags} UWP")
124endif()
125if(CYGWIN)
126  set(_target_flags "${_target_flags} CYGWIN")
127endif()
128if(MSYS)
129  set(_target_flags "${_target_flags} MSYS")
130endif()
131if(DOS)
132  set(_target_flags "${_target_flags} DOS")
133endif()
134if(AMIGA)
135  set(_target_flags "${_target_flags} AMIGA")
136endif()
137if(CMAKE_COMPILER_IS_GNUCC)
138  set(_target_flags "${_target_flags} GCC")
139endif()
140if(MINGW)
141  set(_target_flags "${_target_flags} MINGW")
142endif()
143if(MSVC)
144  set(_target_flags "${_target_flags} MSVC-${MSVC_VERSION}")
145endif()
146if(VCPKG_TOOLCHAIN)
147  set(_target_flags "${_target_flags} VCPKG")
148endif()
149if(CMAKE_CROSSCOMPILING)
150  set(_target_flags "${_target_flags} CROSS")
151endif()
152message(STATUS "CMake platform flags:${_target_flags}")
153
154if(CMAKE_CROSSCOMPILING)
155  message(STATUS "Cross-compiling: "
156    "${CMAKE_HOST_SYSTEM_NAME}/${CMAKE_HOST_SYSTEM_PROCESSOR} -> "
157    "${CMAKE_SYSTEM_NAME}/${CMAKE_SYSTEM_PROCESSOR}")
158endif()
159
160if(CMAKE_C_COMPILER_TARGET)
161  set(CURL_OS "\"${CMAKE_C_COMPILER_TARGET}\"")
162else()
163  set(CURL_OS "\"${CMAKE_SYSTEM_NAME}\"")
164endif()
165
166include_directories("${PROJECT_SOURCE_DIR}/include")
167
168if(NOT DEFINED CMAKE_UNITY_BUILD_BATCH_SIZE)
169  set(CMAKE_UNITY_BUILD_BATCH_SIZE 0)
170endif()
171
172# Having CMAKE_TRY_COMPILE_TARGET_TYPE set to STATIC_LIBRARY breaks certain
173# 'check_function_exists()' detections (possibly more), by detecting
174# non-existing features. This happens by default when using 'ios.toolchain.cmake'.
175# Work it around by setting this value to `EXECUTABLE`.
176if(CMAKE_TRY_COMPILE_TARGET_TYPE STREQUAL "STATIC_LIBRARY")
177  message(STATUS "CMAKE_TRY_COMPILE_TARGET_TYPE was found set to STATIC_LIBRARY. "
178    "Overriding with EXECUTABLE for feature detections to work.")
179  set(_cmake_try_compile_target_type_save ${CMAKE_TRY_COMPILE_TARGET_TYPE})
180  set(CMAKE_TRY_COMPILE_TARGET_TYPE "EXECUTABLE")
181endif()
182
183option(CURL_WERROR "Turn compiler warnings into errors" OFF)
184option(PICKY_COMPILER "Enable picky compiler options" ON)
185option(BUILD_CURL_EXE "Build curl executable" ON)
186option(BUILD_SHARED_LIBS "Build shared libraries" ON)
187option(BUILD_STATIC_LIBS "Build static libraries" OFF)
188option(BUILD_STATIC_CURL "Build curl executable with static libcurl" OFF)
189option(ENABLE_ARES "Enable c-ares support" OFF)
190option(CURL_DISABLE_INSTALL "Disable installation targets" OFF)
191
192if(WIN32)
193  option(CURL_STATIC_CRT "Build libcurl with static CRT with MSVC (/MT)" OFF)
194  if(CURL_STATIC_CRT AND MSVC)
195    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
196    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -MT")
197    set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -MTd")
198  endif()
199
200  option(ENABLE_UNICODE "Use the Unicode version of the Windows API functions" OFF)
201  if(WINDOWS_STORE)
202    set(ENABLE_UNICODE ON)
203  endif()
204  if(ENABLE_UNICODE)
205    add_definitions("-DUNICODE" "-D_UNICODE")
206    if(MINGW)
207      add_compile_options("-municode")
208    endif()
209  endif()
210
211  list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DWIN32_LEAN_AND_MEAN")  # Apply to all feature checks
212
213  set(CURL_TARGET_WINDOWS_VERSION "" CACHE STRING "Minimum target Windows version as hex string")
214  if(CURL_TARGET_WINDOWS_VERSION)
215    add_definitions("-D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION}")
216    list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION}")  # Apply to all feature checks
217  endif()
218
219  # Detect actual value of _WIN32_WINNT and store as HAVE_WIN32_WINNT
220  curl_internal_test(HAVE_WIN32_WINNT)
221  if(HAVE_WIN32_WINNT)
222    string(REGEX MATCH "_WIN32_WINNT=0x[0-9a-fA-F]+" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
223    string(REGEX REPLACE "_WIN32_WINNT=" "" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
224    string(REGEX REPLACE "0x([0-9a-f][0-9a-f][0-9a-f])$" "0x0\\1" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")  # pad to 4 digits
225    string(TOLOWER "${CURL_TEST_OUTPUT}" HAVE_WIN32_WINNT)
226    message(STATUS "Found _WIN32_WINNT=${HAVE_WIN32_WINNT}")
227  endif()
228  unset(HAVE_WIN32_WINNT CACHE)  # Avoid storing in CMake cache
229
230  if(MINGW)
231    # Detect __MINGW64_VERSION_MAJOR, __MINGW64_VERSION_MINOR and store as MINGW64_VERSION
232    curl_internal_test(MINGW64_VERSION)
233    if(MINGW64_VERSION)
234      string(REGEX MATCH "MINGW64_VERSION=[0-9]+\.[0-9]+" CURL_TEST_OUTPUT "${CURL_TEST_OUTPUT}")
235      string(REGEX REPLACE "MINGW64_VERSION=" "" MINGW64_VERSION "${CURL_TEST_OUTPUT}")
236      message(STATUS "Found MINGW64_VERSION=${MINGW64_VERSION}")
237    endif()
238    unset(MINGW64_VERSION CACHE)  # Avoid storing in CMake cache
239  endif()
240elseif(DOS OR AMIGA)
241  set(BUILD_SHARED_LIBS OFF)
242  set(BUILD_STATIC_LIBS ON)
243endif()
244option(CURL_LTO "Enable compiler Link Time Optimizations" OFF)
245
246if(NOT DOS AND NOT AMIGA)
247  # if c-ares is used, default the threaded resolver to OFF
248  if(ENABLE_ARES)
249    set(_enable_threaded_resolver_default OFF)
250  else()
251    set(_enable_threaded_resolver_default ON)
252  endif()
253  option(ENABLE_THREADED_RESOLVER "Enable threaded DNS lookup" ${_enable_threaded_resolver_default})
254endif()
255
256include(PickyWarnings)
257
258if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
259  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GNU_SOURCE")  # Required for sendmmsg()
260endif()
261
262option(ENABLE_DEBUG "Enable curl debug features (for developing curl itself)" OFF)
263if(ENABLE_DEBUG)
264  message(WARNING "This curl build is Debug-enabled, do not use in production.")
265endif()
266option(ENABLE_CURLDEBUG "Enable TrackMemory debug feature" ${ENABLE_DEBUG})
267
268if(MSVC)
269  set(ENABLE_CURLDEBUG OFF)  # FIXME: TrackMemory + MSVC fails test 558 and 1330. Tested with static build, Debug mode.
270endif()
271
272if(ENABLE_DEBUG)
273  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "DEBUGBUILD")
274endif()
275
276if(ENABLE_CURLDEBUG)
277  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "CURLDEBUG")
278endif()
279
280option(CURL_CLANG_TIDY "Run the build through clang-tidy" OFF)
281if(CURL_CLANG_TIDY)
282  set(CMAKE_UNITY_BUILD OFF)
283  set(_tidy_checks "")
284  list(APPEND _tidy_checks "-clang-analyzer-security.insecureAPI.strcpy")
285  list(APPEND _tidy_checks "-clang-analyzer-optin.performance.Padding")
286  list(APPEND _tidy_checks "-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
287  string(REPLACE ";" "," _tidy_checks "${_tidy_checks}")
288  find_program(CLANG_TIDY NAMES "clang-tidy" REQUIRED)
289  set(CMAKE_C_CLANG_TIDY "${CLANG_TIDY}" "-checks=${_tidy_checks}" "-quiet")
290  unset(_tidy_checks)
291  if(CURL_WERROR)
292    list(APPEND CMAKE_C_CLANG_TIDY "--warnings-as-errors=*")
293  endif()
294  if(CURL_CLANG_TIDYFLAGS)
295    list(APPEND CMAKE_C_CLANG_TIDY ${CURL_CLANG_TIDYFLAGS})
296  endif()
297endif()
298
299# For debug libs and exes, add "-d" postfix
300if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
301  set(CMAKE_DEBUG_POSTFIX "-d")
302endif()
303
304set(LIB_STATIC "libcurl_static")
305set(LIB_SHARED "libcurl_shared")
306
307if(NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
308  set(BUILD_STATIC_LIBS ON)
309endif()
310if(NOT BUILD_STATIC_CURL AND NOT BUILD_SHARED_LIBS)
311  set(BUILD_STATIC_CURL ON)
312elseif(BUILD_STATIC_CURL AND NOT BUILD_STATIC_LIBS)
313  set(BUILD_STATIC_CURL OFF)
314endif()
315
316# Lib flavour selected for curl tool
317if(BUILD_STATIC_CURL)
318  set(LIB_SELECTED_FOR_EXE ${LIB_STATIC})
319else()
320  set(LIB_SELECTED_FOR_EXE ${LIB_SHARED})
321endif()
322
323# Lib flavour selected for example and test programs.
324if(BUILD_SHARED_LIBS)
325  set(LIB_SELECTED ${LIB_SHARED})
326else()
327  set(LIB_SELECTED ${LIB_STATIC})
328endif()
329
330# Override to force-disable or force-enable the use of pkg-config.
331if((UNIX AND NOT ANDROID AND (NOT APPLE OR CMAKE_SYSTEM_NAME MATCHES "Darwin")) OR
332   VCPKG_TOOLCHAIN OR
333   (MINGW AND NOT CMAKE_CROSSCOMPILING))
334  set(_curl_use_pkgconfig_default ON)
335else()
336  set(_curl_use_pkgconfig_default OFF)
337endif()
338option(CURL_USE_PKGCONFIG "Enable pkg-config to detect dependencies" ${_curl_use_pkgconfig_default})
339
340# Initialize variables collecting dependency libs, paths, pkg-config names.
341set(CURL_LIBS "")
342set(CURL_LIBDIRS "")
343set(LIBCURL_PC_REQUIRES_PRIVATE "")
344
345if(ENABLE_ARES)
346  set(USE_ARES 1)
347  find_package(Cares REQUIRED)
348  list(APPEND CURL_LIBS ${CARES_LIBRARIES})
349  list(APPEND CURL_LIBDIRS ${CARES_LIBRARY_DIRS})
350  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${CARES_PC_REQUIRES})
351  link_directories(${CARES_LIBRARY_DIRS})
352  if(CARES_CFLAGS)
353    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CARES_CFLAGS}")
354  endif()
355endif()
356
357include(CurlSymbolHiding)
358
359option(CURL_ENABLE_EXPORT_TARGET "Enable CMake export target" ON)
360mark_as_advanced(CURL_ENABLE_EXPORT_TARGET)
361
362option(CURL_DISABLE_ALTSVC "Disable alt-svc support" OFF)
363mark_as_advanced(CURL_DISABLE_ALTSVC)
364option(CURL_DISABLE_SRP "Disable TLS-SRP support" OFF)
365mark_as_advanced(CURL_DISABLE_SRP)
366option(CURL_DISABLE_COOKIES "Disable cookies support" OFF)
367mark_as_advanced(CURL_DISABLE_COOKIES)
368option(CURL_DISABLE_BASIC_AUTH "Disable Basic authentication" OFF)
369mark_as_advanced(CURL_DISABLE_BASIC_AUTH)
370option(CURL_DISABLE_BEARER_AUTH "Disable Bearer authentication" OFF)
371mark_as_advanced(CURL_DISABLE_BEARER_AUTH)
372option(CURL_DISABLE_DIGEST_AUTH "Disable Digest authentication" OFF)
373mark_as_advanced(CURL_DISABLE_DIGEST_AUTH)
374option(CURL_DISABLE_KERBEROS_AUTH "Disable Kerberos authentication" OFF)
375mark_as_advanced(CURL_DISABLE_KERBEROS_AUTH)
376option(CURL_DISABLE_NEGOTIATE_AUTH "Disable negotiate authentication" OFF)
377mark_as_advanced(CURL_DISABLE_NEGOTIATE_AUTH)
378option(CURL_DISABLE_AWS "Disable aws-sigv4" OFF)
379mark_as_advanced(CURL_DISABLE_AWS)
380option(CURL_DISABLE_DICT "Disable DICT" OFF)
381mark_as_advanced(CURL_DISABLE_DICT)
382option(CURL_DISABLE_DOH "Disable DNS-over-HTTPS" OFF)
383mark_as_advanced(CURL_DISABLE_DOH)
384option(CURL_DISABLE_FILE "Disable FILE" OFF)
385mark_as_advanced(CURL_DISABLE_FILE)
386option(CURL_DISABLE_FTP "Disable FTP" OFF)
387mark_as_advanced(CURL_DISABLE_FTP)
388option(CURL_DISABLE_GETOPTIONS "Disable curl_easy_options API for existing options to curl_easy_setopt" OFF)
389mark_as_advanced(CURL_DISABLE_GETOPTIONS)
390option(CURL_DISABLE_GOPHER "Disable Gopher" OFF)
391mark_as_advanced(CURL_DISABLE_GOPHER)
392option(CURL_DISABLE_HEADERS_API "Disable headers-api support" OFF)
393mark_as_advanced(CURL_DISABLE_HEADERS_API)
394option(CURL_DISABLE_HSTS "Disable HSTS support" OFF)
395mark_as_advanced(CURL_DISABLE_HSTS)
396option(CURL_DISABLE_HTTP "Disable HTTP" OFF)
397mark_as_advanced(CURL_DISABLE_HTTP)
398option(CURL_DISABLE_HTTP_AUTH "Disable all HTTP authentication methods" OFF)
399mark_as_advanced(CURL_DISABLE_HTTP_AUTH)
400option(CURL_DISABLE_IMAP "Disable IMAP" OFF)
401mark_as_advanced(CURL_DISABLE_IMAP)
402option(CURL_DISABLE_LDAP "Disable LDAP" OFF)
403mark_as_advanced(CURL_DISABLE_LDAP)
404option(CURL_DISABLE_LDAPS "Disable LDAPS" ${CURL_DISABLE_LDAP})
405mark_as_advanced(CURL_DISABLE_LDAPS)
406option(CURL_DISABLE_LIBCURL_OPTION "Disable --libcurl option from the curl tool" OFF)
407mark_as_advanced(CURL_DISABLE_LIBCURL_OPTION)
408option(CURL_DISABLE_MIME "Disable MIME support" OFF)
409mark_as_advanced(CURL_DISABLE_MIME)
410cmake_dependent_option(CURL_DISABLE_FORM_API "Disable form-api"
411  OFF "NOT CURL_DISABLE_MIME"
412  ON)
413mark_as_advanced(CURL_DISABLE_FORM_API)
414option(CURL_DISABLE_MQTT "Disable MQTT" OFF)
415mark_as_advanced(CURL_DISABLE_MQTT)
416option(CURL_DISABLE_BINDLOCAL "Disable local binding support" OFF)
417mark_as_advanced(CURL_DISABLE_BINDLOCAL)
418option(CURL_DISABLE_NETRC "Disable netrc parser" OFF)
419mark_as_advanced(CURL_DISABLE_NETRC)
420option(CURL_DISABLE_NTLM "Disable NTLM support" OFF)
421mark_as_advanced(CURL_DISABLE_NTLM)
422option(CURL_DISABLE_PARSEDATE "Disable date parsing" OFF)
423mark_as_advanced(CURL_DISABLE_PARSEDATE)
424option(CURL_DISABLE_POP3 "Disable POP3" OFF)
425mark_as_advanced(CURL_DISABLE_POP3)
426option(CURL_DISABLE_PROGRESS_METER "Disable built-in progress meter" OFF)
427mark_as_advanced(CURL_DISABLE_PROGRESS_METER)
428option(CURL_DISABLE_PROXY "Disable proxy support" OFF)
429mark_as_advanced(CURL_DISABLE_PROXY)
430option(CURL_DISABLE_IPFS "Disable IPFS" OFF)
431mark_as_advanced(CURL_DISABLE_IPFS)
432option(CURL_DISABLE_RTSP "Disable RTSP" OFF)
433mark_as_advanced(CURL_DISABLE_SHA512_256)
434option(CURL_DISABLE_SHA512_256 "Disable SHA-512/256 hash algorithm" OFF)
435mark_as_advanced(CURL_DISABLE_RTSP)
436option(CURL_DISABLE_SHUFFLE_DNS "Disable shuffle DNS feature" OFF)
437mark_as_advanced(CURL_DISABLE_SHUFFLE_DNS)
438option(CURL_DISABLE_SMB "Disable SMB" OFF)
439mark_as_advanced(CURL_DISABLE_SMB)
440option(CURL_DISABLE_SMTP "Disable SMTP" OFF)
441mark_as_advanced(CURL_DISABLE_SMTP)
442option(CURL_DISABLE_SOCKETPAIR "Disable use of socketpair for curl_multi_poll" OFF)
443mark_as_advanced(CURL_DISABLE_SOCKETPAIR)
444option(CURL_DISABLE_WEBSOCKETS "Disable WebSocket" OFF)
445mark_as_advanced(CURL_DISABLE_WEBSOCKETS)
446option(CURL_DISABLE_TELNET "Disable Telnet" OFF)
447mark_as_advanced(CURL_DISABLE_TELNET)
448option(CURL_DISABLE_TFTP "Disable TFTP" OFF)
449mark_as_advanced(CURL_DISABLE_TFTP)
450option(CURL_DISABLE_VERBOSE_STRINGS "Disable verbose strings" OFF)
451mark_as_advanced(CURL_DISABLE_VERBOSE_STRINGS)
452
453if(CURL_DISABLE_HTTP)
454  set(CURL_DISABLE_IPFS ON)
455  set(CURL_DISABLE_RTSP ON)
456  set(CURL_DISABLE_ALTSVC ON)
457  set(CURL_DISABLE_HSTS ON)
458endif()
459
460# Corresponds to HTTP_ONLY in lib/curl_setup.h
461option(HTTP_ONLY "Disable all protocols except HTTP (This overrides all CURL_DISABLE_* options)" OFF)
462mark_as_advanced(HTTP_ONLY)
463
464if(HTTP_ONLY)
465  set(CURL_DISABLE_DICT ON)
466  set(CURL_DISABLE_FILE ON)
467  set(CURL_DISABLE_FTP ON)
468  set(CURL_DISABLE_GOPHER ON)
469  set(CURL_DISABLE_IMAP ON)
470  set(CURL_DISABLE_LDAP ON)
471  set(CURL_DISABLE_LDAPS ON)
472  set(CURL_DISABLE_MQTT ON)
473  set(CURL_DISABLE_POP3 ON)
474  set(CURL_DISABLE_IPFS ON)
475  set(CURL_DISABLE_RTSP ON)
476  set(CURL_DISABLE_SMB ON)
477  set(CURL_DISABLE_SMTP ON)
478  set(CURL_DISABLE_TELNET ON)
479  set(CURL_DISABLE_TFTP ON)
480endif()
481
482if(WINDOWS_STORE)
483  set(CURL_DISABLE_TELNET ON)  # telnet code needs fixing to compile for UWP.
484endif()
485
486option(ENABLE_IPV6 "Enable IPv6 support" ON)
487mark_as_advanced(ENABLE_IPV6)
488if(ENABLE_IPV6 AND NOT WIN32)
489  include(CheckStructHasMember)
490  check_struct_has_member("struct sockaddr_in6" "sin6_addr" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_ADDR)
491  check_struct_has_member("struct sockaddr_in6" "sin6_scope_id" "netinet/in.h" HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
492  if(NOT HAVE_SOCKADDR_IN6_SIN6_ADDR)
493    if(NOT DOS AND NOT AMIGA)
494      message(WARNING "struct sockaddr_in6 not available, disabling IPv6 support")
495    endif()
496    # Force the feature off as this name is used as guard macro...
497    set(ENABLE_IPV6 OFF CACHE BOOL "Enable IPv6 support" FORCE)
498  endif()
499
500  if(APPLE AND NOT ENABLE_ARES)
501    set(_use_core_foundation_and_core_services ON)
502
503    find_library(SYSTEMCONFIGURATION_FRAMEWORK NAMES "SystemConfiguration")
504    mark_as_advanced(SYSTEMCONFIGURATION_FRAMEWORK)
505    if(NOT SYSTEMCONFIGURATION_FRAMEWORK)
506      message(FATAL_ERROR "SystemConfiguration framework not found")
507    endif()
508    list(APPEND CURL_LIBS "-framework SystemConfiguration")
509  endif()
510endif()
511if(ENABLE_IPV6)
512  set(USE_IPV6 ON)
513endif()
514
515find_package(Perl)
516
517if(PERL_EXECUTABLE)
518  add_custom_target(curl-ca-bundle
519    COMMENT "Generating a fresh ca-bundle.crt" VERBATIM USES_TERMINAL
520    COMMAND "${PERL_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/mk-ca-bundle.pl" -b -l -u "lib/ca-bundle.crt"
521    DEPENDS "${PROJECT_SOURCE_DIR}/scripts/mk-ca-bundle.pl"
522  )
523  add_custom_target(curl-ca-firefox
524    COMMENT "generating a fresh ca-bundle.crt" VERBATIM USES_TERMINAL
525    COMMAND "${PERL_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/firefox-db2pem.sh" "lib/ca-bundle.crt"
526    DEPENDS "${PROJECT_SOURCE_DIR}/scripts/firefox-db2pem.sh"
527  )
528endif()
529
530option(BUILD_LIBCURL_DOCS "Build libcurl man pages" ON)
531option(BUILD_MISC_DOCS "Build misc man pages (e.g. curl-config and mk-ca-bundle)" ON)
532option(ENABLE_CURL_MANUAL "Build the man page for curl and enable its -M/--manual option" ON)
533
534if(ENABLE_CURL_MANUAL OR BUILD_LIBCURL_DOCS)
535  if(PERL_FOUND)
536    set(HAVE_MANUAL_TOOLS ON)
537  endif()
538  if(NOT HAVE_MANUAL_TOOLS)
539    message(WARNING "Perl not found. Will not build manuals.")
540  endif()
541endif()
542
543# Disable warnings on Borland to avoid changing 3rd party code.
544if(BORLAND)
545  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
546endif()
547
548# If we are on AIX, do the _ALL_SOURCE magic
549if(CMAKE_SYSTEM_NAME STREQUAL "AIX")
550  add_definitions("-D_ALL_SOURCE")
551endif()
552
553# If we are on Haiku, make sure that the network library is brought in.
554if(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
555  list(APPEND CURL_LIBS "network")
556elseif(AMIGA)
557  list(APPEND CURL_LIBS "net" "m" "atomic")
558  list(APPEND CMAKE_REQUIRED_LIBRARIES "net" "m" "atomic")
559endif()
560
561# Include all the necessary files for macros
562include(CMakePushCheckState)
563include(CheckFunctionExists)
564include(CheckIncludeFile)
565include(CheckIncludeFiles)
566include(CheckLibraryExists)
567include(CheckSymbolExists)
568include(CheckTypeSize)
569include(CheckCSourceCompiles)
570
571if(WIN32)
572  # Preload settings on Windows
573  include("${CMAKE_CURRENT_SOURCE_DIR}/CMake/win32-cache.cmake")
574elseif(APPLE)
575  # Fast-track predictable feature detections
576  set(HAVE_EVENTFD 0)
577  set(HAVE_GETPASS_R 0)
578  set(HAVE_SENDMMSG 0)
579elseif(AMIGA)
580  set(HAVE_GETADDRINFO 0)  # Breaks the build when detected and used.
581endif()
582if(DOS OR AMIGA)
583  set(HAVE_TIME_T_UNSIGNED 1)
584endif()
585
586if(ENABLE_THREADED_RESOLVER)
587  if(WIN32)
588    set(USE_THREADS_WIN32 ON)
589  else()
590    find_package(Threads REQUIRED)
591    set(USE_THREADS_POSIX ${CMAKE_USE_PTHREADS_INIT})
592    set(HAVE_PTHREAD_H ${CMAKE_USE_PTHREADS_INIT})
593    list(APPEND CURL_LIBS ${CMAKE_THREAD_LIBS_INIT})
594  endif()
595endif()
596
597# Check for all needed libraries
598if(DOS)
599  if(WATT_ROOT)
600    set(USE_WATT32 ON)
601    # FIXME upstream: must specify the full path to avoid CMake converting "watt" to "watt.lib"
602    list(APPEND CURL_LIBS "${WATT_ROOT}/lib/libwatt.a")
603    include_directories(SYSTEM "${WATT_ROOT}/inc")
604    list(APPEND CMAKE_REQUIRED_INCLUDES "${WATT_ROOT}/inc")
605  else()
606    message(FATAL_ERROR "Set WATT_ROOT variable to the root installation of Watt-32.")
607  endif()
608elseif(AMIGA)
609  if(AMISSL_INCLUDE_DIR AND AMISSL_STUBS_LIBRARY AND AMISSL_AUTO_LIBRARY)
610    set(USE_AMISSL ON)
611    list(APPEND CMAKE_REQUIRED_INCLUDES "${AMISSL_INCLUDE_DIR}")
612    list(APPEND CMAKE_REQUIRED_LIBRARIES "${AMISSL_STUBS_LIBRARY}" "${AMISSL_AUTO_LIBRARY}")
613    set(OPENSSL_INCLUDE_DIR "${AMISSL_INCLUDE_DIR}")
614    set(OPENSSL_SSL_LIBRARY "${AMISSL_STUBS_LIBRARY}")
615    set(OPENSSL_CRYPTO_LIBRARY "${AMISSL_AUTO_LIBRARY}")
616    set(CURL_USE_OPENSSL ON)
617    set(CURL_CA_FALLBACK ON CACHE BOOL "")
618  endif()
619elseif(NOT WIN32 AND NOT APPLE)
620  check_library_exists("socket" "connect" "" HAVE_LIBSOCKET)
621  if(HAVE_LIBSOCKET)
622    set(CURL_LIBS "socket;${CURL_LIBS}")
623  endif()
624endif()
625
626if(WIN32)
627  list(APPEND CURL_LIBS "ws2_32" "bcrypt")
628endif()
629
630# Check SSL libraries
631option(CURL_ENABLE_SSL "Enable SSL support" ON)
632
633if(CURL_DEFAULT_SSL_BACKEND)
634  set(_valid_default_ssl_backend FALSE)
635endif()
636
637if(APPLE)
638  cmake_dependent_option(CURL_USE_SECTRANSP "Enable Apple OS native SSL/TLS (Secure Transport)" OFF CURL_ENABLE_SSL OFF)
639endif()
640if(WIN32)
641  cmake_dependent_option(CURL_USE_SCHANNEL "Enable Windows native SSL/TLS (Schannel)" OFF CURL_ENABLE_SSL OFF)
642  option(CURL_WINDOWS_SSPI "Enable SSPI on Windows" ${CURL_USE_SCHANNEL})
643endif()
644cmake_dependent_option(CURL_USE_MBEDTLS "Enable mbedTLS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
645cmake_dependent_option(CURL_USE_BEARSSL "Enable BearSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
646cmake_dependent_option(CURL_USE_WOLFSSL "Enable wolfSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
647cmake_dependent_option(CURL_USE_GNUTLS "Enable GnuTLS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
648cmake_dependent_option(CURL_USE_RUSTLS "Enable Rustls for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
649
650if(WIN32 OR
651   CURL_USE_SECTRANSP OR
652   CURL_USE_SCHANNEL OR
653   CURL_USE_MBEDTLS OR
654   CURL_USE_BEARSSL OR
655   CURL_USE_WOLFSSL OR
656   CURL_USE_GNUTLS OR
657   CURL_USE_RUSTLS)
658  set(_openssl_default OFF)
659else()
660  set(_openssl_default ON)
661endif()
662cmake_dependent_option(CURL_USE_OPENSSL "Enable OpenSSL for SSL/TLS" ${_openssl_default} CURL_ENABLE_SSL OFF)
663option(USE_OPENSSL_QUIC "Use OpenSSL and nghttp3 libraries for HTTP/3 support" OFF)
664if(USE_OPENSSL_QUIC AND NOT CURL_USE_OPENSSL)
665  message(WARNING "OpenSSL QUIC has been requested, but without enabling OpenSSL. Will not enable QUIC.")
666  set(USE_OPENSSL_QUIC OFF)
667endif()
668option(CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG "Disable automatic loading of OpenSSL configuration" OFF)
669
670curl_count_true(_enabled_ssl_options_count
671  CURL_USE_SCHANNEL
672  CURL_USE_SECTRANSP
673  CURL_USE_OPENSSL
674  CURL_USE_MBEDTLS
675  CURL_USE_BEARSSL
676  CURL_USE_WOLFSSL
677  CURL_USE_GNUTLS
678  CURL_USE_RUSTLS
679)
680if(_enabled_ssl_options_count GREATER 1)
681  set(CURL_WITH_MULTI_SSL ON)
682elseif(_enabled_ssl_options_count EQUAL 0)
683  set(CURL_DISABLE_HSTS ON)
684endif()
685
686if(CURL_USE_SCHANNEL)
687  set(_ssl_enabled ON)
688  set(USE_SCHANNEL ON)  # Windows native SSL/TLS support
689  set(USE_WINDOWS_SSPI ON)  # CURL_USE_SCHANNEL implies CURL_WINDOWS_SSPI
690
691  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "schannel")
692    set(_valid_default_ssl_backend TRUE)
693  endif()
694endif()
695if(CURL_WINDOWS_SSPI)
696  set(USE_WINDOWS_SSPI ON)
697endif()
698
699if(CURL_USE_SECTRANSP)
700  set(_use_core_foundation_and_core_services ON)
701
702  find_library(SECURITY_FRAMEWORK NAMES "Security")
703  mark_as_advanced(SECURITY_FRAMEWORK)
704  if(NOT SECURITY_FRAMEWORK)
705    message(FATAL_ERROR "Security framework not found")
706  endif()
707  list(APPEND CURL_LIBS "-framework Security")
708
709  set(_ssl_enabled ON)
710  set(USE_SECTRANSP ON)
711
712  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "secure-transport")
713    set(_valid_default_ssl_backend TRUE)
714  endif()
715
716  message(WARNING "Secure Transport does not support TLS 1.3.")
717endif()
718
719if(_use_core_foundation_and_core_services)
720  find_library(COREFOUNDATION_FRAMEWORK NAMES "CoreFoundation")
721  mark_as_advanced(COREFOUNDATION_FRAMEWORK)
722  if(NOT COREFOUNDATION_FRAMEWORK)
723    message(FATAL_ERROR "CoreFoundation framework not found")
724  endif()
725  list(APPEND CURL_LIBS "-framework CoreFoundation")
726
727  find_library(CORESERVICES_FRAMEWORK NAMES "CoreServices")
728  mark_as_advanced(CORESERVICES_FRAMEWORK)
729  if(NOT CORESERVICES_FRAMEWORK)
730    message(FATAL_ERROR "CoreServices framework not found")
731  endif()
732  list(APPEND CURL_LIBS "-framework CoreServices")
733endif()
734
735if(CURL_USE_OPENSSL)
736  find_package(OpenSSL REQUIRED)
737  set(_ssl_enabled ON)
738  set(USE_OPENSSL ON)
739
740  # Depend on OpenSSL via imported targets. This allows our dependents to
741  # get our dependencies transitively.
742  list(APPEND CURL_LIBS OpenSSL::SSL OpenSSL::Crypto)
743  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "openssl")
744
745  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "openssl")
746    set(_valid_default_ssl_backend TRUE)
747  endif()
748  set(_curl_ca_bundle_supported TRUE)
749
750  cmake_push_check_state()
751  list(APPEND CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
752  if(NOT DEFINED HAVE_BORINGSSL)
753    check_symbol_exists("OPENSSL_IS_BORINGSSL" "openssl/base.h" HAVE_BORINGSSL)
754  endif()
755  if(NOT DEFINED HAVE_AWSLC)
756    check_symbol_exists("OPENSSL_IS_AWSLC" "openssl/base.h" HAVE_AWSLC)
757  endif()
758  if(NOT DEFINED HAVE_LIBRESSL)
759    check_symbol_exists("LIBRESSL_VERSION_NUMBER" "openssl/opensslv.h" HAVE_LIBRESSL)
760  endif()
761  cmake_pop_check_state()
762
763  if(HAVE_BORINGSSL OR HAVE_AWSLC)
764    if(OPENSSL_USE_STATIC_LIBS AND CMAKE_C_COMPILER_ID MATCHES "Clang")
765      list(APPEND CURL_LIBS "stdc++")
766      list(APPEND CMAKE_REQUIRED_LIBRARIES "stdc++")
767    endif()
768  endif()
769
770  if(HAVE_BORINGSSL)
771    set(_openssl "BoringSSL")
772  elseif(HAVE_AWSLC)
773    set(_openssl "AWS-LC")
774  elseif(HAVE_LIBRESSL)
775    set(_openssl "LibreSSL")
776  elseif(USE_AMISSL)
777    set(_openssl "AmiSSL")
778  else()
779    set(_openssl "OpenSSL")
780    if(OPENSSL_VERSION VERSION_LESS 1.1.1)
781      message(WARNING "OpenSSL ${OPENSSL_VERSION} does not support TLS 1.3.")
782    endif()
783  endif()
784endif()
785
786if(CURL_USE_MBEDTLS)
787  find_package(MbedTLS REQUIRED)
788  set(_ssl_enabled ON)
789  set(USE_MBEDTLS ON)
790  list(APPEND CURL_LIBS ${MBEDTLS_LIBRARIES})
791  list(APPEND CURL_LIBDIRS ${MBEDTLS_LIBRARY_DIRS})
792  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${MBEDTLS_PC_REQUIRES})
793  include_directories(SYSTEM ${MBEDTLS_INCLUDE_DIRS})
794  link_directories(${MBEDTLS_LIBRARY_DIRS})
795  if(MBEDTLS_CFLAGS)
796    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MBEDTLS_CFLAGS}")
797  endif()
798
799  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "mbedtls")
800    set(_valid_default_ssl_backend TRUE)
801  endif()
802  set(_curl_ca_bundle_supported TRUE)
803endif()
804
805if(CURL_USE_BEARSSL)
806  find_package(BearSSL REQUIRED)
807  set(_ssl_enabled ON)
808  set(USE_BEARSSL ON)
809  list(APPEND CURL_LIBS ${BEARSSL_LIBRARIES})
810  include_directories(SYSTEM ${BEARSSL_INCLUDE_DIRS})
811
812  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "bearssl")
813    set(_valid_default_ssl_backend TRUE)
814  endif()
815  set(_curl_ca_bundle_supported TRUE)
816
817  message(WARNING "BearSSL does not support TLS 1.3.")
818endif()
819
820if(CURL_USE_WOLFSSL)
821  find_package(WolfSSL REQUIRED)
822  set(_ssl_enabled ON)
823  set(USE_WOLFSSL ON)
824  list(APPEND CURL_LIBS ${WOLFSSL_LIBRARIES})
825  list(APPEND CURL_LIBDIRS ${WOLFSSL_LIBRARY_DIRS})
826  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${WOLFSSL_PC_REQUIRES})
827  include_directories(SYSTEM ${WOLFSSL_INCLUDE_DIRS})
828  link_directories(${WOLFSSL_LIBRARY_DIRS})
829  if(WOLFSSL_CFLAGS)
830    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WOLFSSL_CFLAGS}")
831  endif()
832
833  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "wolfssl")
834    set(_valid_default_ssl_backend TRUE)
835  endif()
836  set(_curl_ca_bundle_supported TRUE)
837endif()
838
839if(CURL_USE_GNUTLS)
840  if(CURL_USE_PKGCONFIG)
841    find_package(PkgConfig QUIET)
842    pkg_check_modules(GNUTLS "gnutls")
843    if(GNUTLS_FOUND)
844      set(GNUTLS_LIBRARIES ${GNUTLS_LINK_LIBRARIES})
845    endif()
846  endif()
847  if(NOT GNUTLS_FOUND)
848    find_package(GnuTLS REQUIRED)
849  endif()
850  find_package(Nettle REQUIRED)
851  set(_ssl_enabled ON)
852  set(USE_GNUTLS ON)
853  list(APPEND CURL_LIBS ${GNUTLS_LIBRARIES} ${NETTLE_LIBRARIES})
854  list(APPEND CURL_LIBDIRS ${NETTLE_LIBRARY_DIRS})
855  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "gnutls" ${NETTLE_PC_REQUIRES})
856  include_directories(SYSTEM ${GNUTLS_INCLUDE_DIRS} ${NETTLE_INCLUDE_DIRS})
857  link_directories(${NETTLE_LIBRARY_DIRS})
858  if(NETTLE_CFLAGS)
859    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NETTLE_CFLAGS}")
860  endif()
861
862  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "gnutls")
863    set(_valid_default_ssl_backend TRUE)
864  endif()
865  set(_curl_ca_bundle_supported TRUE)
866
867  if(NOT DEFINED HAVE_GNUTLS_SRP AND NOT CURL_DISABLE_SRP)
868    cmake_push_check_state()
869    list(APPEND CMAKE_REQUIRED_INCLUDES ${GNUTLS_INCLUDE_DIRS})
870    list(APPEND CMAKE_REQUIRED_LIBRARIES ${GNUTLS_LIBRARIES})
871    check_symbol_exists("gnutls_srp_verifier" "gnutls/gnutls.h" HAVE_GNUTLS_SRP)
872    cmake_pop_check_state()
873  endif()
874endif()
875
876if(CURL_USE_RUSTLS)
877  find_package(Rustls REQUIRED)
878  set(_ssl_enabled ON)
879  set(USE_RUSTLS ON)
880  list(APPEND CURL_LIBS ${RUSTLS_LIBRARIES})
881  list(APPEND CURL_LIBDIRS ${RUSTLS_LIBRARY_DIRS})
882  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${RUSTLS_PC_REQUIRES})
883  include_directories(SYSTEM ${RUSTLS_INCLUDE_DIRS})
884  link_directories(${RUSTLS_LIBRARY_DIRS})
885  if(RUSTLS_CFLAGS)
886    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${RUSTLS_CFLAGS}")
887  endif()
888
889  if(CURL_DEFAULT_SSL_BACKEND AND CURL_DEFAULT_SSL_BACKEND STREQUAL "rustls")
890    set(_valid_default_ssl_backend TRUE)
891  endif()
892  set(_curl_ca_bundle_supported TRUE)
893endif()
894
895if(CURL_DEFAULT_SSL_BACKEND AND NOT _valid_default_ssl_backend)
896  message(FATAL_ERROR "CURL_DEFAULT_SSL_BACKEND '${CURL_DEFAULT_SSL_BACKEND}' not enabled.")
897endif()
898
899# Keep ZLIB detection after TLS detection,
900# and before calling curl_openssl_check_symbol_exists().
901
902set(HAVE_LIBZ OFF)
903curl_dependency_option(CURL_ZLIB ZLIB "ZLIB")
904if(ZLIB_FOUND)
905  set(HAVE_LIBZ ON)
906  # Depend on ZLIB via imported targets. This allows our dependents to
907  # get our dependencies transitively.
908  list(APPEND CURL_LIBS ZLIB::ZLIB)
909  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "zlib")
910endif()
911
912set(HAVE_BROTLI OFF)
913curl_dependency_option(CURL_BROTLI Brotli "brotli")
914if(BROTLI_FOUND)
915  set(HAVE_BROTLI ON)
916  list(APPEND CURL_LIBS ${BROTLI_LIBRARIES})
917  list(APPEND CURL_LIBDIRS ${BROTLI_LIBRARY_DIRS})
918  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${BROTLI_PC_REQUIRES})
919  include_directories(SYSTEM ${BROTLI_INCLUDE_DIRS})
920  link_directories(${BROTLI_LIBRARY_DIRS})
921  if(BROTLI_CFLAGS)
922    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${BROTLI_CFLAGS}")
923  endif()
924endif()
925
926set(HAVE_ZSTD OFF)
927curl_dependency_option(CURL_ZSTD Zstd "zstd")
928if(ZSTD_FOUND)
929  if(NOT ZSTD_VERSION VERSION_LESS 1.0.0)
930    set(HAVE_ZSTD ON)
931    list(APPEND CURL_LIBS ${ZSTD_LIBRARIES})
932    list(APPEND CURL_LIBDIRS ${ZSTD_LIBRARY_DIRS})
933    list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${ZSTD_PC_REQUIRES})
934    include_directories(SYSTEM ${ZSTD_INCLUDE_DIRS})
935    link_directories(${ZSTD_LIBRARY_DIRS})
936    if(ZSTD_CFLAGS)
937      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ZSTD_CFLAGS}")
938    endif()
939  else()
940    message(WARNING "zstd v1.0.0 or newer is required, disabling zstd support.")
941  endif()
942endif()
943
944# Check symbol in an OpenSSL-like TLS backend.
945macro(curl_openssl_check_symbol_exists _symbol _files _variable)
946  cmake_push_check_state()
947  if(USE_OPENSSL)
948    list(APPEND CMAKE_REQUIRED_INCLUDES   "${OPENSSL_INCLUDE_DIR}")
949    list(APPEND CMAKE_REQUIRED_LIBRARIES  "${OPENSSL_LIBRARIES}")
950    if(HAVE_LIBZ)
951      list(APPEND CMAKE_REQUIRED_LIBRARIES "${ZLIB_LIBRARIES}")
952    endif()
953    if(WIN32)
954      list(APPEND CMAKE_REQUIRED_LIBRARIES "ws2_32")
955      list(APPEND CMAKE_REQUIRED_LIBRARIES "bcrypt")  # for OpenSSL/LibreSSL
956    endif()
957  endif()
958  if(USE_WOLFSSL)
959    list(APPEND CMAKE_REQUIRED_INCLUDES   "${WOLFSSL_INCLUDE_DIRS}")
960    list(APPEND CMAKE_REQUIRED_LIBRARIES  "${WOLFSSL_LIBRARIES}")
961    curl_required_libpaths("${WOLFSSL_LIBRARY_DIRS}")
962    if(HAVE_LIBZ)
963      list(APPEND CMAKE_REQUIRED_INCLUDES  "${ZLIB_INCLUDE_DIRS}")  # Public wolfSSL headers require zlib headers
964      list(APPEND CMAKE_REQUIRED_LIBRARIES "${ZLIB_LIBRARIES}")
965    endif()
966    if(WIN32)
967      list(APPEND CMAKE_REQUIRED_LIBRARIES "ws2_32" "crypt32")
968    endif()
969    list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DHAVE_UINTPTR_T")  # to pull in stdint.h (as of wolfSSL v5.5.4)
970  endif()
971  check_symbol_exists("${_symbol}" "${_files}" "${_variable}")
972  cmake_pop_check_state()
973endmacro()
974
975# Ensure that the OpenSSL fork actually supports QUIC.
976macro(curl_openssl_check_quic)
977  if(NOT DEFINED HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT)
978    if(USE_OPENSSL)
979      curl_openssl_check_symbol_exists("SSL_set_quic_use_legacy_codepoint" "openssl/ssl.h" HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT)
980    endif()
981    if(USE_WOLFSSL)
982      curl_openssl_check_symbol_exists("wolfSSL_set_quic_use_legacy_codepoint" "wolfssl/options.h;wolfssl/openssl/ssl.h"
983        HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT)
984    endif()
985  endif()
986  if(NOT HAVE_SSL_SET_QUIC_USE_LEGACY_CODEPOINT)
987    message(FATAL_ERROR "QUIC support is missing in OpenSSL fork. Try setting -DOPENSSL_ROOT_DIR")
988  endif()
989endmacro()
990
991if(USE_WOLFSSL)
992  curl_openssl_check_symbol_exists("wolfSSL_DES_ecb_encrypt" "wolfssl/options.h;wolfssl/openssl/des.h" HAVE_WOLFSSL_DES_ECB_ENCRYPT)
993  curl_openssl_check_symbol_exists("wolfSSL_BIO_new" "wolfssl/options.h;wolfssl/ssl.h" HAVE_WOLFSSL_BIO)
994  curl_openssl_check_symbol_exists("wolfSSL_BIO_set_shutdown" "wolfssl/options.h;wolfssl/ssl.h" HAVE_WOLFSSL_FULL_BIO)
995endif()
996
997if(USE_OPENSSL OR USE_WOLFSSL)
998  if(NOT DEFINED HAVE_SSL_SET0_WBIO)
999    curl_openssl_check_symbol_exists("SSL_set0_wbio" "openssl/ssl.h" HAVE_SSL_SET0_WBIO)
1000  endif()
1001  if(NOT DEFINED HAVE_OPENSSL_SRP AND NOT CURL_DISABLE_SRP)
1002    curl_openssl_check_symbol_exists("SSL_CTX_set_srp_username" "openssl/ssl.h" HAVE_OPENSSL_SRP)
1003  endif()
1004endif()
1005
1006option(USE_HTTPSRR "Enable HTTPS RR support" OFF)
1007option(USE_ECH "Enable ECH support" OFF)
1008if(USE_ECH)
1009  if(USE_OPENSSL OR USE_WOLFSSL)
1010    # Be sure that the TLS library actually supports ECH.
1011    if(USE_WOLFSSL)
1012      curl_openssl_check_symbol_exists("wolfSSL_CTX_GenerateEchConfig" "wolfssl/options.h;wolfssl/ssl.h"
1013        HAVE_WOLFSSL_CTX_GENERATEECHCONFIG)
1014    endif()
1015    if(HAVE_BORINGSSL OR HAVE_AWSLC)
1016      curl_openssl_check_symbol_exists("SSL_set1_ech_config_list" "openssl/ssl.h" HAVE_SSL_SET1_ECH_CONFIG_LIST)
1017    elseif(HAVE_OPENSSL)
1018      curl_openssl_check_symbol_exists("SSL_set1_ech_config_list" "openssl/ech.h" HAVE_SSL_SET1_ECH_CONFIG_LIST)
1019    endif()
1020    if(HAVE_WOLFSSL_CTX_GENERATEECHCONFIG OR
1021       HAVE_SSL_SET1_ECH_CONFIG_LIST)
1022      set(HAVE_ECH 1)
1023    endif()
1024    if(NOT HAVE_ECH)
1025      message(FATAL_ERROR "ECH support missing in OpenSSL/BoringSSL/AWS-LC/wolfSSL")
1026    else()
1027      message(STATUS "ECH enabled")
1028      # ECH wants HTTPSRR
1029      set(USE_HTTPSRR ON)
1030      message(STATUS "HTTPSRR enabled")
1031    endif()
1032  else()
1033    message(FATAL_ERROR "ECH requires ECH-enablded OpenSSL, BoringSSL, AWS-LC or wolfSSL")
1034  endif()
1035endif()
1036
1037option(USE_SSLS_EXPORT "Enable SSL session export support" OFF)
1038if(USE_SSLS_EXPORT)
1039  if(_ssl_enabled)
1040    message(STATUS "SSL export enabled.")
1041  else()
1042    message(FATAL_ERROR "SSL session export requires SSL enabled")
1043  endif()
1044endif()
1045
1046option(USE_NGHTTP2 "Use nghttp2 library" ON)
1047if(USE_NGHTTP2)
1048  find_package(NGHTTP2)
1049  if(NGHTTP2_FOUND)
1050    list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
1051    list(APPEND CURL_LIBDIRS ${NGHTTP2_LIBRARY_DIRS})
1052    list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${NGHTTP2_PC_REQUIRES})
1053    include_directories(SYSTEM ${NGHTTP2_INCLUDE_DIRS})
1054    link_directories(${NGHTTP2_LIBRARY_DIRS})
1055    if(NGHTTP2_CFLAGS)
1056      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NGHTTP2_CFLAGS}")
1057    endif()
1058  else()
1059    set(USE_NGHTTP2 OFF)
1060  endif()
1061endif()
1062
1063option(USE_NGTCP2 "Use ngtcp2 and nghttp3 libraries for HTTP/3 support" OFF)
1064if(USE_NGTCP2)
1065  if(USE_OPENSSL OR USE_WOLFSSL)
1066    if(USE_WOLFSSL)
1067      find_package(NGTCP2 REQUIRED "wolfSSL")
1068    elseif(HAVE_BORINGSSL OR HAVE_AWSLC)
1069      find_package(NGTCP2 REQUIRED "BoringSSL")
1070    else()
1071      find_package(NGTCP2 REQUIRED "quictls")
1072      if(NOT HAVE_LIBRESSL)
1073        set(_openssl "quictls")
1074      endif()
1075    endif()
1076    curl_openssl_check_quic()
1077  elseif(USE_GNUTLS)
1078    find_package(NGTCP2 REQUIRED "GnuTLS")
1079  else()
1080    message(FATAL_ERROR "ngtcp2 requires OpenSSL, wolfSSL or GnuTLS")
1081  endif()
1082  list(APPEND CURL_LIBS ${NGTCP2_LIBRARIES})
1083  list(APPEND CURL_LIBDIRS ${NGTCP2_LIBRARY_DIRS})
1084  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${NGTCP2_PC_REQUIRES})
1085  include_directories(SYSTEM ${NGTCP2_INCLUDE_DIRS})
1086  link_directories(${NGTCP2_LIBRARY_DIRS})
1087  if(NGTCP2_CFLAGS)
1088    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NGTCP2_CFLAGS}")
1089  endif()
1090
1091  find_package(NGHTTP3 REQUIRED)
1092  set(USE_NGHTTP3 ON)
1093  list(APPEND CURL_LIBS ${NGHTTP3_LIBRARIES})
1094  list(APPEND CURL_LIBDIRS ${NGHTTP3_LIBRARY_DIRS})
1095  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${NGHTTP3_PC_REQUIRES})
1096  include_directories(SYSTEM ${NGHTTP3_INCLUDE_DIRS})
1097  link_directories(${NGHTTP3_LIBRARY_DIRS})
1098  if(NGHTTP3_CFLAGS)
1099    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NGHTTP3_CFLAGS}")
1100  endif()
1101endif()
1102
1103option(USE_QUICHE "Use quiche library for HTTP/3 support" OFF)
1104if(USE_QUICHE)
1105  if(USE_NGTCP2)
1106    message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
1107  endif()
1108  find_package(Quiche REQUIRED)
1109  if(NOT HAVE_BORINGSSL)
1110    message(FATAL_ERROR "quiche requires BoringSSL")
1111  endif()
1112  curl_openssl_check_quic()
1113  list(APPEND CURL_LIBS ${QUICHE_LIBRARIES})
1114  list(APPEND CURL_LIBDIRS ${QUICHE_LIBRARY_DIRS})
1115  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${QUICHE_PC_REQUIRES})
1116  include_directories(SYSTEM ${QUICHE_INCLUDE_DIRS})
1117  link_directories(${QUICHE_LIBRARY_DIRS})
1118  if(QUICHE_CFLAGS)
1119    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${QUICHE_CFLAGS}")
1120  endif()
1121  if(NOT DEFINED HAVE_QUICHE_CONN_SET_QLOG_FD)
1122    cmake_push_check_state()
1123    list(APPEND CMAKE_REQUIRED_INCLUDES   "${QUICHE_INCLUDE_DIRS}")
1124    list(APPEND CMAKE_REQUIRED_LIBRARIES  "${QUICHE_LIBRARIES}")
1125    check_symbol_exists("quiche_conn_set_qlog_fd" "quiche.h" HAVE_QUICHE_CONN_SET_QLOG_FD)
1126    cmake_pop_check_state()
1127  endif()
1128endif()
1129
1130option(USE_MSH3 "Use msh3/msquic library for HTTP/3 support" OFF)
1131if(USE_MSH3)
1132  if(USE_NGTCP2 OR USE_QUICHE)
1133    message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
1134  endif()
1135  if(NOT WIN32)
1136    if(NOT USE_OPENSSL)
1137      message(FATAL_ERROR "msh3/msquic requires OpenSSL fork with QUIC API")
1138    endif()
1139    curl_openssl_check_quic()
1140  endif()
1141  find_package(MSH3 REQUIRED)
1142  list(APPEND CURL_LIBS ${MSH3_LIBRARIES})
1143  list(APPEND CURL_LIBDIRS ${MSH3_LIBRARY_DIRS})
1144  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${MSH3_PC_REQUIRES})
1145  include_directories(SYSTEM ${MSH3_INCLUDE_DIRS})
1146  link_directories(${MSH3_LIBRARY_DIRS})
1147  if(MSH3_CFLAGS)
1148    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MSH3_CFLAGS}")
1149  endif()
1150endif()
1151
1152if(USE_OPENSSL_QUIC)
1153  if(USE_NGTCP2 OR USE_QUICHE OR USE_MSH3)
1154    message(FATAL_ERROR "Only one HTTP/3 backend can be selected")
1155  endif()
1156  find_package(OpenSSL 3.3.0 REQUIRED)
1157
1158  find_package(NGHTTP3 REQUIRED)
1159  set(USE_NGHTTP3 ON)
1160  include_directories(SYSTEM ${NGHTTP3_INCLUDE_DIRS})
1161  list(APPEND CURL_LIBS ${NGHTTP3_LIBRARIES})
1162  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${NGHTTP3_PC_REQUIRES})
1163endif()
1164
1165if(CURL_WITH_MULTI_SSL AND (USE_NGTCP2 OR USE_QUICHE OR USE_MSH3 OR USE_OPENSSL_QUIC))
1166  message(FATAL_ERROR "MultiSSL cannot be enabled with HTTP/3 and vice versa.")
1167endif()
1168
1169if(NOT CURL_DISABLE_SRP AND (HAVE_GNUTLS_SRP OR HAVE_OPENSSL_SRP))
1170  set(USE_TLS_SRP 1)
1171endif()
1172
1173if(NOT CURL_DISABLE_LDAP)
1174  if(WIN32 AND NOT WINDOWS_STORE)
1175    option(USE_WIN32_LDAP "Use Windows LDAP implementation" ON)
1176    if(USE_WIN32_LDAP)
1177      list(APPEND CURL_LIBS "wldap32")
1178      if(NOT CURL_DISABLE_LDAPS)
1179        set(HAVE_LDAP_SSL ON)
1180      endif()
1181    endif()
1182  endif()
1183
1184  # Now that we know, we are not using Windows LDAP...
1185  if(NOT USE_WIN32_LDAP)
1186    # Check for LDAP
1187    cmake_push_check_state()
1188    if(USE_OPENSSL)
1189      list(APPEND CMAKE_REQUIRED_LIBRARIES ${OPENSSL_LIBRARIES})
1190    endif()
1191    find_package(LDAP)
1192    if(LDAP_FOUND)
1193      set(HAVE_LBER_H 1)
1194      set(CURL_LIBS "${LDAP_LIBRARIES};${CURL_LIBS}")
1195      list(APPEND CURL_LIBDIRS ${LDAP_LIBRARY_DIRS})
1196      if(LDAP_PC_REQUIRES)
1197        set(LIBCURL_PC_REQUIRES_PRIVATE "${LDAP_PC_REQUIRES};${LIBCURL_PC_REQUIRES_PRIVATE}")
1198      endif()
1199      include_directories(SYSTEM ${LDAP_INCLUDE_DIRS})
1200      link_directories(${LDAP_LIBRARY_DIRS})
1201      if(LDAP_CFLAGS)
1202        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LDAP_CFLAGS}")
1203      endif()
1204
1205      # LDAP feature checks
1206
1207      list(APPEND CMAKE_REQUIRED_DEFINITIONS "-DLDAP_DEPRECATED=1")
1208      list(APPEND CMAKE_REQUIRED_LIBRARIES ${LDAP_LIBRARIES})
1209      curl_required_libpaths("${LDAP_LIBRARY_DIRS}")
1210
1211      check_function_exists("ldap_url_parse" HAVE_LDAP_URL_PARSE)
1212      check_function_exists("ldap_init_fd" HAVE_LDAP_INIT_FD)
1213
1214      check_include_file("ldap_ssl.h" HAVE_LDAP_SSL_H)
1215
1216      if(HAVE_LDAP_INIT_FD)
1217        set(USE_OPENLDAP ON)
1218        add_definitions("-DLDAP_DEPRECATED=1")
1219      endif()
1220      if(NOT CURL_DISABLE_LDAPS)
1221        set(HAVE_LDAP_SSL ON)
1222      endif()
1223    else()
1224      message(STATUS "LDAP not found. CURL_DISABLE_LDAP set ON")
1225      set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
1226    endif()
1227    cmake_pop_check_state()
1228  endif()
1229endif()
1230
1231# No ldap, no ldaps.
1232if(CURL_DISABLE_LDAP)
1233  if(NOT CURL_DISABLE_LDAPS)
1234    message(STATUS "LDAP needs to be enabled to support LDAPS")
1235    set(CURL_DISABLE_LDAPS ON CACHE BOOL "" FORCE)
1236  endif()
1237endif()
1238
1239if(WIN32)
1240  option(USE_WIN32_IDN "Use WinIDN for IDN support" OFF)
1241  if(USE_WIN32_IDN)
1242    list(APPEND CURL_LIBS "normaliz")
1243  endif()
1244else()
1245  set(USE_WIN32_IDN OFF)
1246endif()
1247
1248if(APPLE)
1249  option(USE_APPLE_IDN "Use Apple built-in IDN support" OFF)
1250  if(USE_APPLE_IDN)
1251    cmake_push_check_state()
1252    list(APPEND CMAKE_REQUIRED_LIBRARIES "icucore")
1253    check_symbol_exists("uidna_openUTS46" "unicode/uidna.h" HAVE_APPLE_IDN)
1254    cmake_pop_check_state()
1255    if(HAVE_APPLE_IDN)
1256      list(APPEND CURL_LIBS "icucore" "iconv")
1257    else()
1258      set(USE_APPLE_IDN OFF)
1259    endif()
1260  endif()
1261else()
1262  set(USE_APPLE_IDN OFF)
1263endif()
1264
1265# Check for libidn2
1266option(USE_LIBIDN2 "Use libidn2 for IDN support" ON)
1267set(HAVE_IDN2_H OFF)
1268set(HAVE_LIBIDN2 OFF)
1269if(USE_LIBIDN2 AND NOT USE_APPLE_IDN AND NOT USE_WIN32_IDN)
1270  find_package(Libidn2)
1271  if(LIBIDN2_FOUND)
1272    set(CURL_LIBS "${LIBIDN2_LIBRARIES};${CURL_LIBS}")
1273    list(APPEND CURL_LIBDIRS ${LIBIDN2_LIBRARY_DIRS})
1274    set(LIBCURL_PC_REQUIRES_PRIVATE "${LIBIDN2_PC_REQUIRES};${LIBCURL_PC_REQUIRES_PRIVATE}")
1275    include_directories(SYSTEM ${LIBIDN2_INCLUDE_DIRS})
1276    link_directories(${LIBIDN2_LIBRARY_DIRS})
1277    if(LIBIDN2_CFLAGS)
1278      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBIDN2_CFLAGS}")
1279    endif()
1280    set(HAVE_IDN2_H 1)
1281    set(HAVE_LIBIDN2 1)
1282  endif()
1283endif()
1284
1285# libpsl
1286option(CURL_USE_LIBPSL "Use libpsl" ON)
1287mark_as_advanced(CURL_USE_LIBPSL)
1288set(USE_LIBPSL OFF)
1289
1290if(CURL_USE_LIBPSL)
1291  find_package(Libpsl REQUIRED)
1292  list(APPEND CURL_LIBS ${LIBPSL_LIBRARIES})
1293  list(APPEND CURL_LIBDIRS ${LIBPSL_LIBRARY_DIRS})
1294  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBPSL_PC_REQUIRES})
1295  include_directories(SYSTEM ${LIBPSL_INCLUDE_DIRS})
1296  link_directories(${LIBPSL_LIBRARY_DIRS})
1297  if(LIBPSL_CFLAGS)
1298    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBPSL_CFLAGS}")
1299  endif()
1300  set(USE_LIBPSL ON)
1301endif()
1302
1303# libssh2
1304option(CURL_USE_LIBSSH2 "Use libssh2" ON)
1305mark_as_advanced(CURL_USE_LIBSSH2)
1306set(USE_LIBSSH2 OFF)
1307
1308if(CURL_USE_LIBSSH2)
1309  find_package(Libssh2)
1310  if(LIBSSH2_FOUND)
1311    list(APPEND CURL_LIBS ${LIBSSH2_LIBRARIES})
1312    list(APPEND CURL_LIBDIRS ${LIBSSH2_LIBRARY_DIRS})
1313    list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBSSH2_PC_REQUIRES})
1314    include_directories(SYSTEM ${LIBSSH2_INCLUDE_DIRS})
1315    link_directories(${LIBSSH2_LIBRARY_DIRS})
1316    if(LIBSSH2_CFLAGS)
1317      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBSSH2_CFLAGS}")
1318    endif()
1319    set(USE_LIBSSH2 ON)
1320  endif()
1321endif()
1322
1323# libssh
1324option(CURL_USE_LIBSSH "Use libssh" OFF)
1325mark_as_advanced(CURL_USE_LIBSSH)
1326if(NOT USE_LIBSSH2 AND CURL_USE_LIBSSH)
1327  find_package(Libssh REQUIRED)
1328  list(APPEND CURL_LIBS ${LIBSSH_LIBRARIES})
1329  list(APPEND CURL_LIBDIRS ${LIBSSH_LIBRARY_DIRS})
1330  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBSSH_PC_REQUIRES})
1331  include_directories(SYSTEM ${LIBSSH_INCLUDE_DIRS})
1332  link_directories(${LIBSSH_LIBRARY_DIRS})
1333  if(LIBSSH_CFLAGS)
1334    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBSSH_CFLAGS}")
1335  endif()
1336  set(USE_LIBSSH ON)
1337endif()
1338
1339# wolfSSH
1340option(CURL_USE_WOLFSSH "Use wolfSSH" OFF)
1341mark_as_advanced(CURL_USE_WOLFSSH)
1342set(USE_WOLFSSH OFF)
1343if(NOT USE_LIBSSH2 AND NOT USE_LIBSSH AND CURL_USE_WOLFSSH)
1344  if(USE_WOLFSSL)
1345    find_package(WolfSSH)
1346    if(WOLFSSH_FOUND)
1347      list(APPEND CURL_LIBS ${WOLFSSH_LIBRARIES})
1348      include_directories(SYSTEM ${WOLFSSH_INCLUDE_DIRS})
1349      set(USE_WOLFSSH ON)
1350    endif()
1351  else()
1352    message(WARNING "wolfSSH requires wolfSSL. Skipping.")
1353  endif()
1354endif()
1355
1356option(CURL_USE_GSASL "Use libgsasl" OFF)
1357mark_as_advanced(CURL_USE_GSASL)
1358if(CURL_USE_GSASL)
1359  find_package(Libgsasl REQUIRED)
1360  list(APPEND CURL_LIBS ${LIBGSASL_LIBRARIES})
1361  list(APPEND CURL_LIBDIRS ${LIBGSASL_LIBRARY_DIRS})
1362  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBGSASL_PC_REQUIRES})
1363  include_directories(SYSTEM ${LIBGSASL_INCLUDE_DIRS})
1364  link_directories(${LIBGSASL_LIBRARY_DIRS})
1365  if(LIBGSASL_CFLAGS)
1366    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBGSASL_CFLAGS}")
1367  endif()
1368  set(USE_GSASL ON)
1369endif()
1370
1371option(CURL_USE_GSSAPI "Use GSSAPI implementation" OFF)
1372mark_as_advanced(CURL_USE_GSSAPI)
1373
1374if(CURL_USE_GSSAPI)
1375  find_package(GSS)
1376
1377  set(HAVE_GSSAPI ${GSS_FOUND})
1378  if(GSS_FOUND)
1379    list(APPEND CURL_LIBS ${GSS_LIBRARIES})
1380    list(APPEND CURL_LIBDIRS ${GSS_LIBRARY_DIRS})
1381    list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${GSS_PC_REQUIRES})
1382    include_directories(SYSTEM ${GSS_INCLUDE_DIRS})
1383    link_directories(${GSS_LIBRARY_DIRS})
1384    if(GSS_CFLAGS)
1385      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GSS_CFLAGS}")
1386    endif()
1387
1388    if(GSS_FLAVOUR STREQUAL "GNU")
1389      set(HAVE_GSSGNU 1)
1390    else()
1391      cmake_push_check_state()
1392      list(APPEND CMAKE_REQUIRED_INCLUDES ${GSS_INCLUDE_DIRS})
1393
1394      set(_include_list "")
1395      check_include_file("gssapi/gssapi.h" HAVE_GSSAPI_GSSAPI_H)
1396      if(HAVE_GSSAPI_GSSAPI_H)
1397        list(APPEND _include_list "gssapi/gssapi.h")
1398      endif()
1399      check_include_files("${_include_list};gssapi/gssapi_generic.h" HAVE_GSSAPI_GSSAPI_GENERIC_H)
1400
1401      if(GSS_FLAVOUR STREQUAL "MIT")
1402        check_include_files("${_include_list};gssapi/gssapi_krb5.h" _have_gssapi_gssapi_krb5_h)
1403        if(HAVE_GSSAPI_GSSAPI_GENERIC_H)
1404          list(APPEND _include_list "gssapi/gssapi_generic.h")
1405        endif()
1406        if(_have_gssapi_gssapi_krb5_h)
1407          list(APPEND _include_list "gssapi/gssapi_krb5.h")
1408        endif()
1409
1410        if(NOT DEFINED HAVE_GSS_C_NT_HOSTBASED_SERVICE)
1411          set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${GSS_CFLAGS}")
1412          list(APPEND CMAKE_REQUIRED_LIBRARIES ${GSS_LIBRARIES})
1413          curl_required_libpaths("${GSS_LIBRARY_DIRS}")
1414          check_symbol_exists("GSS_C_NT_HOSTBASED_SERVICE" "${_include_list}" HAVE_GSS_C_NT_HOSTBASED_SERVICE)
1415        endif()
1416        if(NOT HAVE_GSS_C_NT_HOSTBASED_SERVICE)
1417          set(HAVE_OLD_GSSMIT ON)
1418        endif()
1419      endif()
1420      unset(_include_list)
1421      cmake_pop_check_state()
1422    endif()
1423  else()
1424    message(WARNING "GSSAPI has been requested, but no supporting libraries found. Skipping.")
1425  endif()
1426endif()
1427
1428# libuv
1429option(CURL_USE_LIBUV "Use libuv for event-based tests" OFF)
1430if(CURL_USE_LIBUV)
1431  if(NOT ENABLE_DEBUG)
1432    message(FATAL_ERROR "Using libuv without debug support enabled is useless")
1433  endif()
1434  find_package(Libuv REQUIRED)
1435  list(APPEND CURL_LIBS ${LIBUV_LIBRARIES})
1436  list(APPEND CURL_LIBDIRS ${LIBUV_LIBRARY_DIRS})
1437  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBUV_PC_REQUIRES})
1438  include_directories(SYSTEM ${LIBUV_INCLUDE_DIRS})
1439  link_directories(${LIBUV_LIBRARY_DIRS})
1440  if(LIBUV_CFLAGS)
1441    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBUV_CFLAGS}")
1442  endif()
1443  set(USE_LIBUV ON)
1444  set(HAVE_UV_H ON)
1445endif()
1446
1447option(USE_LIBRTMP "Enable librtmp from rtmpdump" OFF)
1448if(USE_LIBRTMP)
1449  find_package(Librtmp REQUIRED)
1450  list(APPEND CURL_LIBS ${LIBRTMP_LIBRARIES})
1451  list(APPEND CURL_LIBDIRS ${LIBRTMP_LIBRARY_DIRS})
1452  list(APPEND LIBCURL_PC_REQUIRES_PRIVATE ${LIBRTMP_PC_REQUIRES})
1453  include_directories(SYSTEM ${LIBRTMP_INCLUDE_DIRS})
1454  link_directories(${LIBRTMP_LIBRARY_DIRS})
1455  if(LIBRTMP_CFLAGS)
1456    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBRTMP_CFLAGS}")
1457  endif()
1458endif()
1459
1460option(ENABLE_UNIX_SOCKETS "Enable Unix domain sockets support" ON)
1461if(ENABLE_UNIX_SOCKETS)
1462  if(WIN32 OR DOS)
1463    set(USE_UNIX_SOCKETS ON)
1464  else()
1465    include(CheckStructHasMember)
1466    check_struct_has_member("struct sockaddr_un" "sun_path" "sys/un.h" USE_UNIX_SOCKETS)
1467  endif()
1468else()
1469  unset(USE_UNIX_SOCKETS CACHE)
1470endif()
1471
1472#
1473# CA handling
1474#
1475if(_curl_ca_bundle_supported)
1476  set(CURL_CA_BUNDLE "auto" CACHE
1477    STRING "Path to the CA bundle. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
1478  set(CURL_CA_FALLBACK OFF CACHE
1479    BOOL "Use built-in CA store of TLS backend. Defaults to OFF")
1480  set(CURL_CA_PATH "auto" CACHE
1481    STRING "Location of default CA path. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
1482  set(CURL_CA_EMBED "" CACHE
1483    STRING "Path to the CA bundle to embed in the curl tool.")
1484
1485  if(CURL_CA_BUNDLE STREQUAL "")
1486    message(FATAL_ERROR "Invalid value of CURL_CA_BUNDLE. Use 'none', 'auto' or file path.")
1487  elseif(CURL_CA_BUNDLE STREQUAL "none")
1488    unset(CURL_CA_BUNDLE CACHE)
1489  elseif(CURL_CA_BUNDLE STREQUAL "auto")
1490    unset(CURL_CA_BUNDLE CACHE)
1491    if(NOT CMAKE_CROSSCOMPILING AND NOT WIN32)
1492      set(_curl_ca_bundle_autodetect TRUE)
1493    endif()
1494  else()
1495    set(CURL_CA_BUNDLE_SET TRUE)
1496  endif()
1497  mark_as_advanced(CURL_CA_BUNDLE_SET)
1498
1499  if(CURL_CA_PATH STREQUAL "")
1500    message(FATAL_ERROR "Invalid value of CURL_CA_PATH. Use 'none', 'auto' or directory path.")
1501  elseif(CURL_CA_PATH STREQUAL "none")
1502    unset(CURL_CA_PATH CACHE)
1503  elseif(CURL_CA_PATH STREQUAL "auto")
1504    unset(CURL_CA_PATH CACHE)
1505    if(NOT CMAKE_CROSSCOMPILING AND NOT WIN32)
1506      set(_curl_ca_path_autodetect TRUE)
1507    endif()
1508  else()
1509    set(CURL_CA_PATH_SET TRUE)
1510  endif()
1511  mark_as_advanced(CURL_CA_PATH_SET)
1512
1513  if(CURL_CA_BUNDLE_SET AND _curl_ca_path_autodetect)
1514    # Skip auto-detection of unset CA path because CA bundle is set explicitly
1515  elseif(CURL_CA_PATH_SET AND _curl_ca_bundle_autodetect)
1516    # Skip auto-detection of unset CA bundle because CA path is set explicitly
1517  elseif(_curl_ca_bundle_autodetect OR _curl_ca_path_autodetect)
1518    # First try auto-detecting a CA bundle, then a CA path
1519
1520    if(_curl_ca_bundle_autodetect)
1521      foreach(_search_ca_bundle_path IN ITEMS
1522          "/etc/ssl/certs/ca-certificates.crt"
1523          "/etc/pki/tls/certs/ca-bundle.crt"
1524          "/usr/share/ssl/certs/ca-bundle.crt"
1525          "/usr/local/share/certs/ca-root-nss.crt"
1526          "/etc/ssl/cert.pem")
1527        if(EXISTS "${_search_ca_bundle_path}")
1528          message(STATUS "Found CA bundle: ${_search_ca_bundle_path}")
1529          set(CURL_CA_BUNDLE "${_search_ca_bundle_path}" CACHE
1530            STRING "Path to the CA bundle. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
1531          set(CURL_CA_BUNDLE_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
1532          break()
1533        endif()
1534      endforeach()
1535    endif()
1536
1537    if(_curl_ca_path_autodetect AND NOT CURL_CA_PATH_SET)
1538      set(_search_ca_path "/etc/ssl/certs")
1539      file(GLOB _curl_ca_files_found "${_search_ca_path}/[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f].0")
1540      if(_curl_ca_files_found)
1541        unset(_curl_ca_files_found)
1542        message(STATUS "Found CA path: ${_search_ca_path}")
1543        set(CURL_CA_PATH "${_search_ca_path}" CACHE
1544          STRING "Location of default CA path. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
1545        set(CURL_CA_PATH_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
1546      endif()
1547    endif()
1548  endif()
1549
1550  set(CURL_CA_EMBED_SET FALSE)
1551  if(BUILD_CURL_EXE AND NOT CURL_CA_EMBED STREQUAL "")
1552    if(EXISTS "${CURL_CA_EMBED}")
1553      set(CURL_CA_EMBED_SET TRUE)
1554      message(STATUS "Found CA bundle to embed: ${CURL_CA_EMBED}")
1555    else()
1556      message(FATAL_ERROR "CA bundle to embed is missing: '${CURL_CA_EMBED}'")
1557    endif()
1558  endif()
1559endif()
1560
1561if(WIN32)
1562  option(CURL_DISABLE_CA_SEARCH "Disable unsafe CA bundle search in PATH on Windows" OFF)
1563  option(CURL_CA_SEARCH_SAFE "Enable safe CA bundle search (within the curl tool directory) on Windows" OFF)
1564endif()
1565
1566# Check for header files
1567if(WIN32)
1568  list(APPEND CURL_INCLUDES "winsock2.h")
1569  list(APPEND CURL_INCLUDES "ws2tcpip.h")
1570
1571  if(HAVE_WIN32_WINNT)
1572    if(HAVE_WIN32_WINNT LESS 0x0501)
1573      # Windows XP is required for freeaddrinfo, getaddrinfo
1574      message(FATAL_ERROR "Building for Windows XP or newer is required.")
1575    endif()
1576
1577    # Pre-fill detection results based on target OS version
1578    if(MINGW OR MSVC)
1579      if(HAVE_WIN32_WINNT LESS 0x0600)
1580        set(HAVE_INET_NTOP 0)
1581        set(HAVE_INET_PTON 0)
1582      else()  # Windows Vista or newer
1583        set(HAVE_INET_NTOP 1)
1584        set(HAVE_INET_PTON 1)
1585      endif()
1586      unset(HAVE_INET_NTOP CACHE)
1587      unset(HAVE_INET_PTON CACHE)
1588    endif()
1589  endif()
1590endif()
1591
1592# Detect headers
1593
1594# Use check_include_file_concat_curl() for headers required by subsequent
1595# check_include_file_concat_curl() or check_symbol_exists() detections.
1596# Order for these is significant.
1597check_include_file("sys/eventfd.h"    HAVE_SYS_EVENTFD_H)
1598check_include_file("sys/filio.h"      HAVE_SYS_FILIO_H)
1599check_include_file("sys/ioctl.h"      HAVE_SYS_IOCTL_H)
1600check_include_file("sys/param.h"      HAVE_SYS_PARAM_H)
1601check_include_file("sys/poll.h"       HAVE_SYS_POLL_H)
1602check_include_file("sys/resource.h"   HAVE_SYS_RESOURCE_H)
1603check_include_file_concat_curl("sys/select.h"     HAVE_SYS_SELECT_H)
1604check_include_file_concat_curl("sys/socket.h"     HAVE_SYS_SOCKET_H)
1605check_include_file("sys/sockio.h"     HAVE_SYS_SOCKIO_H)
1606check_include_file("sys/stat.h"       HAVE_SYS_STAT_H)
1607check_include_file_concat_curl("sys/time.h"       HAVE_SYS_TIME_H)
1608check_include_file_concat_curl("sys/types.h"      HAVE_SYS_TYPES_H)
1609check_include_file("sys/un.h"         HAVE_SYS_UN_H)
1610check_include_file_concat_curl("sys/utime.h"      HAVE_SYS_UTIME_H)  # sys/types.h (AmigaOS)
1611
1612check_include_file_concat_curl("arpa/inet.h"      HAVE_ARPA_INET_H)
1613check_include_file("dirent.h"         HAVE_DIRENT_H)
1614check_include_file("fcntl.h"          HAVE_FCNTL_H)
1615check_include_file_concat_curl("ifaddrs.h"        HAVE_IFADDRS_H)
1616check_include_file("io.h"             HAVE_IO_H)
1617check_include_file_concat_curl("libgen.h"         HAVE_LIBGEN_H)
1618check_include_file("linux/tcp.h"      HAVE_LINUX_TCP_H)
1619check_include_file("locale.h"         HAVE_LOCALE_H)
1620check_include_file_concat_curl("net/if.h"         HAVE_NET_IF_H)  # sys/select.h (e.g. MS-DOS/Watt-32)
1621check_include_file_concat_curl("netdb.h"          HAVE_NETDB_H)
1622check_include_file_concat_curl("netinet/in.h"     HAVE_NETINET_IN_H)
1623check_include_file("netinet/in6.h"    HAVE_NETINET_IN6_H)
1624check_include_file_concat_curl("netinet/tcp.h"    HAVE_NETINET_TCP_H)  # sys/types.h (e.g. Cygwin) netinet/in.h
1625check_include_file_concat_curl("netinet/udp.h"    HAVE_NETINET_UDP_H)  # sys/types.h (e.g. Cygwin)
1626check_include_file("poll.h"           HAVE_POLL_H)
1627check_include_file("pwd.h"            HAVE_PWD_H)
1628check_include_file("stdatomic.h"      HAVE_STDATOMIC_H)
1629check_include_file("stdbool.h"        HAVE_STDBOOL_H)
1630check_include_file("strings.h"        HAVE_STRINGS_H)
1631check_include_file("stropts.h"        HAVE_STROPTS_H)
1632check_include_file("termio.h"         HAVE_TERMIO_H)
1633check_include_file("termios.h"        HAVE_TERMIOS_H)
1634check_include_file_concat_curl("unistd.h"         HAVE_UNISTD_H)
1635check_include_file("utime.h"          HAVE_UTIME_H)
1636
1637if(AMIGA)
1638  check_include_file_concat_curl("proto/bsdsocket.h" HAVE_PROTO_BSDSOCKET_H)
1639endif()
1640
1641# Pass these detection results to curl_internal_test() for use in CurlTests.c
1642# Add here all feature flags referenced from CurlTests.c
1643foreach(_variable IN ITEMS
1644    HAVE_STDATOMIC_H
1645    HAVE_STDBOOL_H
1646    HAVE_STROPTS_H
1647    HAVE_SYS_IOCTL_H
1648    HAVE_SYS_SOCKET_H
1649    HAVE_SYS_TYPES_H
1650    HAVE_UNISTD_H
1651    )
1652  if(${_variable})
1653    set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${_variable}")
1654  endif()
1655endforeach()
1656
1657check_type_size("size_t"      SIZEOF_SIZE_T)
1658check_type_size("ssize_t"     SIZEOF_SSIZE_T)
1659check_type_size("long long"   SIZEOF_LONG_LONG)
1660check_type_size("long"        SIZEOF_LONG)
1661check_type_size("int"         SIZEOF_INT)
1662check_type_size("__int64"     SIZEOF___INT64)
1663check_type_size("time_t"      SIZEOF_TIME_T)
1664check_type_size("suseconds_t" SIZEOF_SUSECONDS_T)
1665if(NOT HAVE_SIZEOF_SSIZE_T)
1666  if(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
1667    set(ssize_t "long")
1668  endif()
1669  if(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
1670    set(ssize_t "__int64")
1671  endif()
1672endif()
1673# off_t is sized later, after the HAVE_FILE_OFFSET_BITS test
1674
1675if(SIZEOF_LONG_LONG)
1676  set(HAVE_LONGLONG 1)
1677endif()
1678if(SIZEOF_SUSECONDS_T)
1679  set(HAVE_SUSECONDS_T 1)
1680endif()
1681
1682# Check for some functions that are used
1683
1684# Apply to all feature checks
1685if(WIN32)
1686  list(APPEND CMAKE_REQUIRED_LIBRARIES "ws2_32")
1687elseif(HAVE_LIBSOCKET)
1688  list(APPEND CMAKE_REQUIRED_LIBRARIES "socket")
1689elseif(DOS)
1690  list(APPEND CMAKE_REQUIRED_LIBRARIES "${WATT_ROOT}/lib/libwatt.a")
1691endif()
1692
1693check_function_exists("fnmatch"       HAVE_FNMATCH)
1694check_symbol_exists("basename"        "${CURL_INCLUDES};string.h" HAVE_BASENAME)  # libgen.h unistd.h
1695check_symbol_exists("opendir"         "dirent.h" HAVE_OPENDIR)
1696check_function_exists("poll"          HAVE_POLL)  # poll.h
1697check_symbol_exists("socket"          "${CURL_INCLUDES}" HAVE_SOCKET)  # winsock2.h sys/socket.h
1698check_symbol_exists("socketpair"      "${CURL_INCLUDES}" HAVE_SOCKETPAIR)  # sys/socket.h
1699check_symbol_exists("recv"            "${CURL_INCLUDES}" HAVE_RECV)  # proto/bsdsocket.h sys/types.h sys/socket.h
1700check_symbol_exists("send"            "${CURL_INCLUDES}" HAVE_SEND)  # proto/bsdsocket.h sys/types.h sys/socket.h
1701check_function_exists("sendmsg"       HAVE_SENDMSG)
1702check_function_exists("sendmmsg"      HAVE_SENDMMSG)
1703check_symbol_exists("select"          "${CURL_INCLUDES}" HAVE_SELECT)  # proto/bsdsocket.h sys/select.h sys/socket.h
1704check_symbol_exists("strdup"          "string.h" HAVE_STRDUP)
1705check_symbol_exists("strtok_r"        "string.h" HAVE_STRTOK_R)
1706check_symbol_exists("memrchr"         "string.h" HAVE_MEMRCHR)
1707check_symbol_exists("alarm"           "unistd.h" HAVE_ALARM)
1708check_symbol_exists("fcntl"           "fcntl.h" HAVE_FCNTL)
1709check_function_exists("getppid"       HAVE_GETPPID)
1710check_function_exists("utimes"        HAVE_UTIMES)
1711
1712check_function_exists("gettimeofday"  HAVE_GETTIMEOFDAY)  # sys/time.h
1713check_symbol_exists("closesocket"     "${CURL_INCLUDES}" HAVE_CLOSESOCKET)  # winsock2.h
1714check_symbol_exists("sigsetjmp"       "setjmp.h" HAVE_SIGSETJMP)
1715check_function_exists("getpass_r"     HAVE_GETPASS_R)
1716check_function_exists("getpwuid"      HAVE_GETPWUID)
1717check_function_exists("getpwuid_r"    HAVE_GETPWUID_R)
1718check_function_exists("geteuid"       HAVE_GETEUID)
1719check_function_exists("utime"         HAVE_UTIME)
1720check_symbol_exists("gmtime_r"        "stdlib.h;time.h" HAVE_GMTIME_R)
1721
1722check_symbol_exists("gethostbyname_r" "netdb.h" HAVE_GETHOSTBYNAME_R)
1723check_symbol_exists("gethostname"     "${CURL_INCLUDES}" HAVE_GETHOSTNAME)  # winsock2.h unistd.h proto/bsdsocket.h
1724
1725check_symbol_exists("signal"          "signal.h" HAVE_SIGNAL)
1726check_symbol_exists("strtoll"         "stdlib.h" HAVE_STRTOLL)
1727check_symbol_exists("strerror_r"      "stdlib.h;string.h" HAVE_STRERROR_R)
1728check_symbol_exists("sigaction"       "signal.h" HAVE_SIGACTION)
1729check_symbol_exists("siginterrupt"    "signal.h" HAVE_SIGINTERRUPT)
1730check_symbol_exists("getaddrinfo"     "${CURL_INCLUDES};stdlib.h;string.h" HAVE_GETADDRINFO)  # ws2tcpip.h sys/socket.h netdb.h
1731check_symbol_exists("getifaddrs"      "${CURL_INCLUDES};stdlib.h" HAVE_GETIFADDRS)  # ifaddrs.h
1732check_symbol_exists("freeaddrinfo"    "${CURL_INCLUDES}" HAVE_FREEADDRINFO)  # ws2tcpip.h sys/socket.h netdb.h
1733check_function_exists("pipe"          HAVE_PIPE)
1734check_function_exists("eventfd"       HAVE_EVENTFD)
1735check_symbol_exists("ftruncate"       "unistd.h" HAVE_FTRUNCATE)
1736check_symbol_exists("getpeername"     "${CURL_INCLUDES}" HAVE_GETPEERNAME)  # winsock2.h unistd.h proto/bsdsocket.h
1737check_symbol_exists("getsockname"     "${CURL_INCLUDES}" HAVE_GETSOCKNAME)  # winsock2.h unistd.h proto/bsdsocket.h
1738check_function_exists("if_nametoindex"  HAVE_IF_NAMETOINDEX)  # winsock2.h net/if.h
1739check_function_exists("getrlimit"       HAVE_GETRLIMIT)
1740check_function_exists("setlocale"       HAVE_SETLOCALE)
1741check_function_exists("setmode"         HAVE_SETMODE)
1742check_function_exists("setrlimit"       HAVE_SETRLIMIT)
1743
1744if(NOT WIN32)
1745  check_function_exists("sched_yield"   HAVE_SCHED_YIELD)
1746  check_symbol_exists("strcasecmp"      "string.h" HAVE_STRCASECMP)
1747  check_symbol_exists("stricmp"         "string.h" HAVE_STRICMP)
1748  check_symbol_exists("strcmpi"         "string.h" HAVE_STRCMPI)
1749endif()
1750
1751if(WIN32 OR CYGWIN)
1752  check_function_exists("_setmode" HAVE__SETMODE)
1753endif()
1754
1755if(AMIGA)
1756  check_symbol_exists("CloseSocket" "${CURL_INCLUDES}" HAVE_CLOSESOCKET_CAMEL)  # sys/socket.h proto/bsdsocket.h
1757endif()
1758
1759if(NOT _ssl_enabled)
1760  check_symbol_exists("arc4random" "${CURL_INCLUDES};stdlib.h" HAVE_ARC4RANDOM)
1761endif()
1762
1763if(NOT MSVC OR (MSVC_VERSION GREATER_EQUAL 1900))
1764  # Earlier MSVC compilers had faulty snprintf implementations
1765  check_function_exists("snprintf" HAVE_SNPRINTF)
1766endif()
1767if(APPLE)
1768  check_function_exists("mach_absolute_time" HAVE_MACH_ABSOLUTE_TIME)
1769endif()
1770check_symbol_exists("inet_ntop" "${CURL_INCLUDES};stdlib.h;string.h" HAVE_INET_NTOP)  # arpa/inet.h
1771check_symbol_exists("inet_pton" "${CURL_INCLUDES};stdlib.h;string.h" HAVE_INET_PTON)  # arpa/inet.h
1772
1773check_symbol_exists("fsetxattr" "sys/xattr.h" HAVE_FSETXATTR)
1774if(HAVE_FSETXATTR)
1775  curl_internal_test(HAVE_FSETXATTR_5)
1776  curl_internal_test(HAVE_FSETXATTR_6)
1777endif()
1778
1779cmake_push_check_state()
1780if(WIN32)
1781  list(APPEND CMAKE_EXTRA_INCLUDE_FILES "winsock2.h")
1782  check_type_size("ADDRESS_FAMILY" SIZEOF_ADDRESS_FAMILY)
1783  set(HAVE_ADDRESS_FAMILY ${HAVE_SIZEOF_ADDRESS_FAMILY})
1784elseif(HAVE_SYS_SOCKET_H)
1785  list(APPEND CMAKE_EXTRA_INCLUDE_FILES "sys/socket.h")
1786  check_type_size("sa_family_t" SIZEOF_SA_FAMILY_T)
1787  set(HAVE_SA_FAMILY_T ${HAVE_SIZEOF_SA_FAMILY_T})
1788endif()
1789cmake_pop_check_state()
1790
1791# Do curl specific tests
1792foreach(_curl_test IN ITEMS
1793    HAVE_FCNTL_O_NONBLOCK
1794    HAVE_IOCTLSOCKET
1795    HAVE_IOCTLSOCKET_CAMEL
1796    HAVE_IOCTLSOCKET_CAMEL_FIONBIO
1797    HAVE_IOCTLSOCKET_FIONBIO
1798    HAVE_IOCTL_FIONBIO
1799    HAVE_IOCTL_SIOCGIFADDR
1800    HAVE_SETSOCKOPT_SO_NONBLOCK
1801    HAVE_GETHOSTBYNAME_R_3
1802    HAVE_GETHOSTBYNAME_R_5
1803    HAVE_GETHOSTBYNAME_R_6
1804    HAVE_GETHOSTBYNAME_R_3_REENTRANT
1805    HAVE_GETHOSTBYNAME_R_5_REENTRANT
1806    HAVE_GETHOSTBYNAME_R_6_REENTRANT
1807    HAVE_IN_ADDR_T
1808    HAVE_BOOL_T
1809    STDC_HEADERS
1810    HAVE_FILE_OFFSET_BITS
1811    HAVE_ATOMIC
1812    )
1813  curl_internal_test(${_curl_test})
1814endforeach()
1815
1816cmake_push_check_state()
1817if(HAVE_FILE_OFFSET_BITS)
1818  set(_FILE_OFFSET_BITS 64)
1819  list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
1820endif()
1821check_type_size("off_t" SIZEOF_OFF_T)
1822
1823if(NOT WIN32)
1824  # fseeko may not exist with _FILE_OFFSET_BITS=64 but can exist with
1825  # _FILE_OFFSET_BITS unset or 32 (e.g. Android ARMv7 with NDK 26b and API level < 24)
1826  # so we need to test fseeko after testing for _FILE_OFFSET_BITS
1827  check_symbol_exists("fseeko" "${CURL_INCLUDES};stdio.h" HAVE_FSEEKO)
1828
1829  if(HAVE_FSEEKO)
1830    set(HAVE_DECL_FSEEKO 1)
1831  endif()
1832endif()
1833
1834# Include this header to get the type
1835cmake_push_check_state()
1836list(APPEND CMAKE_REQUIRED_INCLUDES "${PROJECT_SOURCE_DIR}/include")
1837list(APPEND CMAKE_EXTRA_INCLUDE_FILES "curl/system.h")
1838check_type_size("curl_off_t" SIZEOF_CURL_OFF_T)
1839list(APPEND CMAKE_EXTRA_INCLUDE_FILES "curl/curl.h")
1840check_type_size("curl_socket_t" SIZEOF_CURL_SOCKET_T)
1841cmake_pop_check_state()  # pop curl system headers
1842cmake_pop_check_state()  # pop -D_FILE_OFFSET_BITS=64
1843
1844if(NOT WIN32 AND NOT CMAKE_CROSSCOMPILING)
1845  # On non-Windows and not cross-compiling, check for writable argv[]
1846  include(CheckCSourceRuns)
1847  check_c_source_runs("
1848    int main(int argc, char **argv)
1849    {
1850      (void)argc;
1851      argv[0][0] = ' ';
1852      return (argv[0][0] == ' ')?0:1;
1853    }" HAVE_WRITABLE_ARGV)
1854endif()
1855
1856if(NOT CMAKE_CROSSCOMPILING)
1857  include(CheckCSourceRuns)
1858  check_c_source_runs("
1859    #include <time.h>
1860    int main(void) {
1861      time_t t = -1;
1862      return t < 0;
1863    }" HAVE_TIME_T_UNSIGNED)
1864endif()
1865
1866curl_internal_test(HAVE_GLIBC_STRERROR_R)
1867curl_internal_test(HAVE_POSIX_STRERROR_R)
1868
1869# Check for reentrant
1870foreach(_curl_test IN ITEMS
1871    HAVE_GETHOSTBYNAME_R_3
1872    HAVE_GETHOSTBYNAME_R_5
1873    HAVE_GETHOSTBYNAME_R_6)
1874  if(NOT ${_curl_test})
1875    if(${_curl_test}_REENTRANT)
1876      set(NEED_REENTRANT 1)
1877    endif()
1878  endif()
1879endforeach()
1880
1881if(NEED_REENTRANT)
1882  foreach(_curl_test IN ITEMS
1883      HAVE_GETHOSTBYNAME_R_3
1884      HAVE_GETHOSTBYNAME_R_5
1885      HAVE_GETHOSTBYNAME_R_6)
1886    set(${_curl_test} 0)
1887    if(${_curl_test}_REENTRANT)
1888      set(${_curl_test} 1)
1889    endif()
1890  endforeach()
1891endif()
1892
1893if(NOT WIN32)
1894  curl_internal_test(HAVE_CLOCK_GETTIME_MONOTONIC)  # Check clock_gettime(CLOCK_MONOTONIC, x) support
1895endif()
1896
1897if(APPLE)
1898  curl_internal_test(HAVE_BUILTIN_AVAILABLE)  # Check compiler support of __builtin_available()
1899endif()
1900
1901# Some other minor tests
1902
1903if(NOT HAVE_IN_ADDR_T)
1904  set(in_addr_t "unsigned long")
1905endif()
1906
1907if(CMAKE_COMPILER_IS_GNUCC AND APPLE)
1908  include(CheckCCompilerFlag)
1909  check_c_compiler_flag("-Wno-long-double" HAVE_C_FLAG_Wno_long_double)
1910  if(HAVE_C_FLAG_Wno_long_double)
1911    # The Mac version of GCC warns about use of long double. Disable it.
1912    get_source_file_property(_mprintf_compile_flags "mprintf.c" COMPILE_FLAGS)
1913    if(_mprintf_compile_flags)
1914      set(_mprintf_compile_flags "${_mprintf_compile_flags} -Wno-long-double")
1915    else()
1916      set(_mprintf_compile_flags "-Wno-long-double")
1917    endif()
1918    set_source_files_properties("mprintf.c" PROPERTIES
1919      COMPILE_FLAGS ${_mprintf_compile_flags})
1920  endif()
1921endif()
1922
1923if(_cmake_try_compile_target_type_save)
1924  set(CMAKE_TRY_COMPILE_TARGET_TYPE ${_cmake_try_compile_target_type_save})
1925  unset(_cmake_try_compile_target_type_save)
1926endif()
1927
1928include(CMake/OtherTests.cmake)
1929
1930add_definitions("-DHAVE_CONFIG_H")
1931
1932if(WIN32)
1933  # _fseeki64() requires VS2005
1934  if(NOT MSVC OR (MSVC_VERSION GREATER_EQUAL 1400))
1935    set(USE_WIN32_LARGE_FILES ON)
1936  endif()
1937
1938  # Use the manifest embedded in the Windows Resource
1939  set(CMAKE_RC_FLAGS "${CMAKE_RC_FLAGS} -DCURL_EMBED_MANIFEST")
1940
1941  # We use crypto functions that are not available for UWP apps
1942  if(NOT WINDOWS_STORE)
1943    set(USE_WIN32_CRYPTO ON)
1944  endif()
1945
1946  # Link required libraries for USE_WIN32_CRYPTO or USE_SCHANNEL
1947  if(USE_WIN32_CRYPTO OR USE_SCHANNEL)
1948    list(APPEND CURL_LIBS "advapi32" "crypt32")
1949  endif()
1950endif()
1951
1952if(MSVC)
1953  # Disable default manifest added by CMake
1954  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -MANIFEST:NO")
1955
1956  if(CMAKE_C_FLAGS MATCHES "[/-]W[0-4]")
1957    string(REGEX REPLACE "[/-]W[0-4]" "-W4" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
1958  else()
1959    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W4")
1960  endif()
1961
1962  # Use multithreaded compilation on VS2008+
1963  if(CMAKE_C_COMPILER_ID STREQUAL "MSVC" AND MSVC_VERSION GREATER_EQUAL 1500)
1964    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MP")
1965  endif()
1966endif()
1967
1968if(CURL_WERROR)
1969  if(MSVC)
1970    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -WX")
1971  else()
1972    # This assumes clang or gcc style options
1973    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
1974  endif()
1975endif()
1976
1977if(CURL_LTO)
1978  if(CMAKE_VERSION VERSION_LESS 3.9)
1979    message(FATAL_ERROR "LTO has been requested, but your cmake version ${CMAKE_VERSION} is to old. You need at least 3.9")
1980  endif()
1981
1982  cmake_policy(SET CMP0069 NEW)
1983
1984  include(CheckIPOSupported)
1985  check_ipo_supported(RESULT CURL_HAS_LTO OUTPUT _lto_error LANGUAGES C)
1986  if(CURL_HAS_LTO)
1987    message(STATUS "LTO supported and enabled")
1988  else()
1989    message(FATAL_ERROR "LTO has been requested, but the compiler does not support it\n${_lto_error}")
1990  endif()
1991endif()
1992
1993
1994# Ugly (but functional) way to include "Makefile.inc" by transforming it
1995# (= regenerate it).
1996function(curl_transform_makefile_inc _input_file _output_file)
1997  file(READ ${_input_file} _makefile_inc_text)
1998  string(REPLACE "$(top_srcdir)"   "\${PROJECT_SOURCE_DIR}" _makefile_inc_text ${_makefile_inc_text})
1999  string(REPLACE "$(top_builddir)" "\${PROJECT_BINARY_DIR}" _makefile_inc_text ${_makefile_inc_text})
2000
2001  string(REGEX REPLACE "\\\\\n" "!π!α!" _makefile_inc_text ${_makefile_inc_text})
2002  string(REGEX REPLACE "([a-zA-Z_][a-zA-Z0-9_]*)[\t ]*=[\t ]*([^\n]*)" "set(\\1 \\2)" _makefile_inc_text ${_makefile_inc_text})
2003  string(REPLACE "!π!α!" "\n" _makefile_inc_text ${_makefile_inc_text})
2004
2005  # Replace $() with ${}
2006  string(REGEX REPLACE "\\$\\(([a-zA-Z_][a-zA-Z0-9_]*)\\)" "\${\\1}" _makefile_inc_text ${_makefile_inc_text})
2007  # Replace @@ with ${}, even if that may not be read by CMake scripts.
2008  string(REGEX REPLACE "@([a-zA-Z_][a-zA-Z0-9_]*)@" "\${\\1}" _makefile_inc_text ${_makefile_inc_text})
2009
2010  file(WRITE ${_output_file} ${_makefile_inc_text})
2011  set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${_input_file}")
2012endfunction()
2013
2014include(GNUInstallDirs)
2015
2016set(_install_cmake_dir "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
2017set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
2018set(_generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
2019set(_project_config "${_generated_dir}/${PROJECT_NAME}Config.cmake")
2020set(_version_config "${_generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
2021
2022option(BUILD_TESTING "Build tests" ON)
2023if(BUILD_TESTING AND PERL_FOUND AND NOT CURL_DISABLE_TESTS)
2024  set(CURL_BUILD_TESTING ON)
2025else()
2026  set(CURL_BUILD_TESTING OFF)
2027endif()
2028
2029if(HAVE_MANUAL_TOOLS)
2030  set(CURL_MANPAGE "${PROJECT_BINARY_DIR}/docs/cmdline-opts/curl.1")
2031  set(CURL_ASCIIPAGE "${PROJECT_BINARY_DIR}/docs/cmdline-opts/curl.txt")
2032  add_subdirectory(docs)
2033endif()
2034
2035add_subdirectory(lib)
2036
2037if(BUILD_CURL_EXE)
2038  add_subdirectory(src)
2039endif()
2040
2041option(BUILD_EXAMPLES "Build libcurl examples" ON)
2042if(BUILD_EXAMPLES)
2043  add_subdirectory(docs/examples)
2044endif()
2045
2046if(CURL_BUILD_TESTING)
2047  add_subdirectory(tests)
2048endif()
2049
2050# Helper to populate a list (_items) with a label when conditions
2051# (the remaining args) are satisfied
2052macro(curl_add_if _label)
2053  # Needs to be a macro to allow this indirection
2054  if(${ARGN})
2055    set(_items ${_items} "${_label}")
2056  endif()
2057endmacro()
2058
2059# NTLM support requires crypto functions from various SSL libs.
2060# These conditions must match those in lib/curl_setup.h.
2061if(NOT CURL_DISABLE_NTLM AND
2062   (USE_OPENSSL OR
2063    USE_MBEDTLS OR
2064    USE_GNUTLS OR
2065    USE_SECTRANSP OR
2066    USE_WIN32_CRYPTO OR
2067    (USE_WOLFSSL AND HAVE_WOLFSSL_DES_ECB_ENCRYPT)))
2068  set(_use_curl_ntlm_core ON)
2069endif()
2070
2071# Clear list and try to detect available protocols
2072set(_items "")
2073curl_add_if("HTTP"          NOT CURL_DISABLE_HTTP)
2074curl_add_if("HTTPS"         NOT CURL_DISABLE_HTTP AND _ssl_enabled)
2075curl_add_if("FTP"           NOT CURL_DISABLE_FTP)
2076curl_add_if("FTPS"          NOT CURL_DISABLE_FTP AND _ssl_enabled)
2077curl_add_if("FILE"          NOT CURL_DISABLE_FILE)
2078curl_add_if("TELNET"        NOT CURL_DISABLE_TELNET)
2079curl_add_if("LDAP"          NOT CURL_DISABLE_LDAP)
2080# CURL_DISABLE_LDAP implies CURL_DISABLE_LDAPS
2081curl_add_if("LDAPS"         NOT CURL_DISABLE_LDAPS AND
2082                            ((USE_OPENLDAP AND _ssl_enabled) OR
2083                            (NOT USE_OPENLDAP AND HAVE_LDAP_SSL)))
2084curl_add_if("DICT"          NOT CURL_DISABLE_DICT)
2085curl_add_if("TFTP"          NOT CURL_DISABLE_TFTP)
2086curl_add_if("GOPHER"        NOT CURL_DISABLE_GOPHER)
2087curl_add_if("GOPHERS"       NOT CURL_DISABLE_GOPHER AND _ssl_enabled)
2088curl_add_if("POP3"          NOT CURL_DISABLE_POP3)
2089curl_add_if("POP3S"         NOT CURL_DISABLE_POP3 AND _ssl_enabled)
2090curl_add_if("IMAP"          NOT CURL_DISABLE_IMAP)
2091curl_add_if("IMAPS"         NOT CURL_DISABLE_IMAP AND _ssl_enabled)
2092curl_add_if("SMB"           NOT CURL_DISABLE_SMB AND
2093                            _use_curl_ntlm_core AND (SIZEOF_CURL_OFF_T GREATER 4))
2094curl_add_if("SMBS"          NOT CURL_DISABLE_SMB AND _ssl_enabled AND
2095                            _use_curl_ntlm_core AND (SIZEOF_CURL_OFF_T GREATER 4))
2096curl_add_if("SMTP"          NOT CURL_DISABLE_SMTP)
2097curl_add_if("SMTPS"         NOT CURL_DISABLE_SMTP AND _ssl_enabled)
2098curl_add_if("SCP"           USE_LIBSSH2 OR USE_LIBSSH OR USE_WOLFSSH)
2099curl_add_if("SFTP"          USE_LIBSSH2 OR USE_LIBSSH OR USE_WOLFSSH)
2100curl_add_if("IPFS"          NOT CURL_DISABLE_IPFS)
2101curl_add_if("IPNS"          NOT CURL_DISABLE_IPFS)
2102curl_add_if("RTSP"          NOT CURL_DISABLE_RTSP)
2103curl_add_if("RTMP"          USE_LIBRTMP)
2104curl_add_if("MQTT"          NOT CURL_DISABLE_MQTT)
2105curl_add_if("WS"            NOT CURL_DISABLE_WEBSOCKETS)
2106curl_add_if("WSS"           NOT CURL_DISABLE_WEBSOCKETS AND _ssl_enabled)
2107if(_items)
2108  list(SORT _items)
2109endif()
2110set(CURL_SUPPORTED_PROTOCOLS_LIST "${_items}")
2111string(REPLACE ";" " " SUPPORT_PROTOCOLS "${_items}")
2112string(TOLOWER "${SUPPORT_PROTOCOLS}" _support_protocols_lower)
2113message(STATUS "Protocols: ${_support_protocols_lower}")
2114
2115# Clear list and try to detect available features
2116set(_items "")
2117curl_add_if("SSL"           _ssl_enabled)
2118curl_add_if("IPv6"          USE_IPV6)
2119curl_add_if("UnixSockets"   USE_UNIX_SOCKETS)
2120curl_add_if("libz"          HAVE_LIBZ)
2121curl_add_if("brotli"        HAVE_BROTLI)
2122curl_add_if("gsasl"         USE_GSASL)
2123curl_add_if("zstd"          HAVE_ZSTD)
2124curl_add_if("AsynchDNS"     USE_ARES OR USE_THREADS_POSIX OR USE_THREADS_WIN32)
2125curl_add_if("asyn-rr"       USE_ARES AND ENABLE_THREADED_RESOLVER)
2126curl_add_if("IDN"           (HAVE_LIBIDN2 AND HAVE_IDN2_H) OR
2127                            USE_WIN32_IDN OR
2128                            USE_APPLE_IDN)
2129curl_add_if("Largefile"     (SIZEOF_CURL_OFF_T GREATER 4) AND
2130                            ((SIZEOF_OFF_T GREATER 4) OR USE_WIN32_LARGE_FILES))
2131curl_add_if("SSPI"          USE_WINDOWS_SSPI)
2132curl_add_if("GSS-API"       HAVE_GSSAPI)
2133curl_add_if("alt-svc"       NOT CURL_DISABLE_ALTSVC)
2134curl_add_if("HSTS"          NOT CURL_DISABLE_HSTS)
2135curl_add_if("SPNEGO"        NOT CURL_DISABLE_NEGOTIATE_AUTH AND
2136                            (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
2137curl_add_if("Kerberos"      NOT CURL_DISABLE_KERBEROS_AUTH AND
2138                            (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
2139curl_add_if("NTLM"          NOT (CURL_DISABLE_NTLM) AND
2140                            (_use_curl_ntlm_core OR USE_WINDOWS_SSPI))
2141curl_add_if("TLS-SRP"       USE_TLS_SRP)
2142curl_add_if("HTTP2"         USE_NGHTTP2)
2143curl_add_if("HTTP3"         USE_NGTCP2 OR USE_QUICHE OR USE_MSH3 OR USE_OPENSSL_QUIC)
2144curl_add_if("MultiSSL"      CURL_WITH_MULTI_SSL)
2145curl_add_if("HTTPS-proxy"   _ssl_enabled AND (USE_OPENSSL OR USE_GNUTLS
2146                            OR USE_SCHANNEL OR USE_RUSTLS OR USE_BEARSSL OR
2147                            USE_MBEDTLS OR USE_SECTRANSP OR
2148                            (USE_WOLFSSL AND HAVE_WOLFSSL_BIO)))
2149curl_add_if("Unicode"       ENABLE_UNICODE)
2150curl_add_if("threadsafe"    HAVE_ATOMIC OR
2151                            (USE_THREADS_POSIX AND HAVE_PTHREAD_H) OR
2152                            (WIN32 AND HAVE_WIN32_WINNT GREATER_EQUAL 0x0600))
2153curl_add_if("Debug"         ENABLE_DEBUG)
2154curl_add_if("TrackMemory"   ENABLE_CURLDEBUG)
2155curl_add_if("ECH"           _ssl_enabled AND HAVE_ECH)
2156curl_add_if("HTTPSRR"       _ssl_enabled AND USE_HTTPSRR)
2157curl_add_if("PSL"           USE_LIBPSL)
2158curl_add_if("CAcert"        CURL_CA_EMBED_SET)
2159curl_add_if("SSLS-EXPORT"   _ssl_enabled AND USE_SSLS_EXPORT)
2160if(_items)
2161  if(NOT CMAKE_VERSION VERSION_LESS 3.13)
2162    list(SORT _items CASE INSENSITIVE)
2163  else()
2164    list(SORT _items)
2165  endif()
2166endif()
2167set(CURL_SUPPORTED_FEATURES_LIST "${_items}")
2168string(REPLACE ";" " " SUPPORT_FEATURES "${_items}")
2169message(STATUS "Features: ${SUPPORT_FEATURES}")
2170
2171# Clear list and collect SSL backends
2172set(_items "")
2173curl_add_if("Schannel"         _ssl_enabled AND USE_SCHANNEL)
2174curl_add_if("${_openssl}"      _ssl_enabled AND USE_OPENSSL AND OPENSSL_VERSION VERSION_LESS 3.0.0)
2175curl_add_if("${_openssl} v3+"  _ssl_enabled AND USE_OPENSSL AND NOT OPENSSL_VERSION VERSION_LESS 3.0.0)
2176curl_add_if("Secure Transport" _ssl_enabled AND USE_SECTRANSP)
2177curl_add_if("mbedTLS"          _ssl_enabled AND USE_MBEDTLS)
2178curl_add_if("BearSSL"          _ssl_enabled AND USE_BEARSSL)
2179curl_add_if("wolfSSL"          _ssl_enabled AND USE_WOLFSSL)
2180curl_add_if("GnuTLS"           _ssl_enabled AND USE_GNUTLS)
2181curl_add_if("rustls"           _ssl_enabled AND USE_RUSTLS)
2182
2183if(_items)
2184  if(NOT CMAKE_VERSION VERSION_LESS 3.13)
2185    list(SORT _items CASE INSENSITIVE)
2186  else()
2187    list(SORT _items)
2188  endif()
2189endif()
2190string(REPLACE ";" " " SSL_BACKENDS "${_items}")
2191message(STATUS "Enabled SSL backends: ${SSL_BACKENDS}")
2192if(CURL_DEFAULT_SSL_BACKEND)
2193  message(STATUS "Default SSL backend: ${CURL_DEFAULT_SSL_BACKEND}")
2194endif()
2195
2196if(NOT CURL_DISABLE_INSTALL)
2197
2198  # curl-config needs the following options to be set.
2199  set(CC                      "${CMAKE_C_COMPILER}")
2200  # TODO: probably put a -D... options here?
2201  set(CONFIGURE_OPTIONS       "")
2202  set(CURLVERSION             "${_curl_version}")
2203  set(VERSIONNUM              "${_curl_version_num}")
2204  set(prefix                  "${CMAKE_INSTALL_PREFIX}")
2205  set(exec_prefix             "\${prefix}")
2206  if(IS_ABSOLUTE ${CMAKE_INSTALL_INCLUDEDIR})
2207    set(includedir            "${CMAKE_INSTALL_INCLUDEDIR}")
2208  else()
2209    set(includedir            "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
2210  endif()
2211  if(IS_ABSOLUTE ${CMAKE_INSTALL_LIBDIR})
2212    set(libdir                "${CMAKE_INSTALL_LIBDIR}")
2213  else()
2214    set(libdir                "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
2215  endif()
2216  # "a" (Linux) or "lib" (Windows)
2217  string(REPLACE "." "" libext "${CMAKE_STATIC_LIBRARY_SUFFIX}")
2218
2219  set(_ldflags "")
2220  set(LIBCURL_PC_LIBS_PRIVATE "")
2221
2222  # Filter CMAKE_SHARED_LINKER_FLAGS for libs and libpaths
2223  string(STRIP "${CMAKE_SHARED_LINKER_FLAGS}" _custom_ldflags)
2224  string(REGEX REPLACE " +-([^ \\t;]*)" ";-\\1" _custom_ldflags "${_custom_ldflags}")
2225
2226  set(_custom_libs "")
2227  set(_custom_libdirs "")
2228  foreach(_flag IN LISTS _custom_ldflags)
2229    if(_flag MATCHES "^-l")
2230      string(REGEX REPLACE "^-l" "" _flag "${_flag}")
2231      list(APPEND _custom_libs "${_flag}")
2232    elseif(_flag MATCHES "^-framework|^-F")
2233      list(APPEND _custom_libs "${_flag}")
2234    elseif(_flag MATCHES "^-L")
2235      string(REGEX REPLACE "^-L" "" _flag "${_flag}")
2236      list(APPEND _custom_libdirs "${_flag}")
2237    elseif(_flag MATCHES "^--library-path=")
2238      string(REGEX REPLACE "^--library-path=" "" _flag "${_flag}")
2239      list(APPEND _custom_libdirs "${_flag}")
2240    endif()
2241  endforeach()
2242
2243  # Avoid getting unnecessary -L options for known system directories.
2244  set(_sys_libdirs "")
2245  foreach(_libdir IN LISTS CMAKE_SYSTEM_PREFIX_PATH)
2246    if(_libdir MATCHES "/$")
2247      set(_libdir "${_libdir}lib")
2248    else()
2249      set(_libdir "${_libdir}/lib")
2250    endif()
2251    if(IS_DIRECTORY "${_libdir}")
2252      list(APPEND _sys_libdirs "${_libdir}")
2253    endif()
2254    if(DEFINED CMAKE_LIBRARY_ARCHITECTURE)
2255      set(_libdir "${_libdir}/${CMAKE_LIBRARY_ARCHITECTURE}")
2256      if(IS_DIRECTORY "${_libdir}")
2257        list(APPEND _sys_libdirs "${_libdir}")
2258      endif()
2259    endif()
2260  endforeach()
2261
2262  foreach(_libdir IN LISTS _custom_libdirs CURL_LIBDIRS)
2263    list(FIND _sys_libdirs "${_libdir}" _libdir_index)
2264    if(_libdir_index LESS 0)
2265      list(APPEND _ldflags "-L${_libdir}")
2266    endif()
2267  endforeach()
2268
2269  set(_implicit_libs "")
2270  if(NOT MINGW AND NOT UNIX)
2271    set(_implicit_libs ${CMAKE_C_IMPLICIT_LINK_LIBRARIES})
2272  endif()
2273
2274  foreach(_lib IN LISTS _implicit_libs _custom_libs CURL_LIBS)
2275    if(TARGET "${_lib}")
2276      set(_libname "${_lib}")
2277      get_target_property(_imported "${_libname}" IMPORTED)
2278      if(NOT _imported)
2279        # Reading the LOCATION property on non-imported target will error out.
2280        # Assume the user will not need this information in the .pc file.
2281        continue()
2282      endif()
2283      get_target_property(_lib "${_libname}" LOCATION)
2284      if(NOT _lib)
2285        message(WARNING "Bad lib in library list: ${_libname}")
2286        continue()
2287      endif()
2288    endif()
2289    if(_lib MATCHES "^-")  # '-framework <name>'
2290      list(APPEND _ldflags "${_lib}")
2291    elseif(_lib MATCHES "/")
2292      # This gets a bit more complex, because we want to specify the
2293      # directory separately, and only once per directory
2294      get_filename_component(_libdir ${_lib} DIRECTORY)
2295      get_filename_component(_libname ${_lib} NAME_WE)
2296      if(_libname MATCHES "^lib")
2297        list(FIND _sys_libdirs "${_libdir}" _libdir_index)
2298        if(_libdir_index LESS 0)
2299          list(APPEND _ldflags "-L${_libdir}")
2300        endif()
2301        string(REGEX REPLACE "^lib" "" _libname "${_libname}")
2302        list(APPEND LIBCURL_PC_LIBS_PRIVATE "-l${_libname}")
2303      else()
2304        list(APPEND LIBCURL_PC_LIBS_PRIVATE "${_lib}")
2305      endif()
2306    else()
2307      list(APPEND LIBCURL_PC_LIBS_PRIVATE "-l${_lib}")
2308    endif()
2309  endforeach()
2310
2311  if(LIBCURL_PC_REQUIRES_PRIVATE)
2312    string(REPLACE ";" "," LIBCURL_PC_REQUIRES_PRIVATE "${LIBCURL_PC_REQUIRES_PRIVATE}")
2313  endif()
2314  if(LIBCURL_PC_LIBS_PRIVATE)
2315    string(REPLACE ";" " " LIBCURL_PC_LIBS_PRIVATE "${LIBCURL_PC_LIBS_PRIVATE}")
2316  endif()
2317  if(_ldflags)
2318    list(REMOVE_DUPLICATES _ldflags)
2319    string(REPLACE ";" " " _ldflags "${_ldflags}")
2320    set(LIBCURL_PC_LDFLAGS_PRIVATE "${_ldflags}")
2321    string(STRIP "${LIBCURL_PC_LDFLAGS_PRIVATE}" LIBCURL_PC_LDFLAGS_PRIVATE)
2322  else()
2323    set(LIBCURL_PC_LDFLAGS_PRIVATE "")
2324  endif()
2325  set(LIBCURL_PC_CFLAGS_PRIVATE "-DCURL_STATICLIB")
2326
2327  # Merge pkg-config private fields into public ones when static-only
2328  if(BUILD_SHARED_LIBS)
2329    set(ENABLE_SHARED       "yes")
2330    set(LIBCURL_PC_REQUIRES "")
2331    set(LIBCURL_PC_LIBS     "")
2332    set(LIBCURL_PC_CFLAGS   "")
2333  else()
2334    set(ENABLE_SHARED       "no")
2335    set(LIBCURL_PC_REQUIRES "${LIBCURL_PC_REQUIRES_PRIVATE}")
2336    set(LIBCURL_PC_LIBS     "${LIBCURL_PC_LIBS_PRIVATE}")
2337    set(LIBCURL_PC_CFLAGS   "${LIBCURL_PC_CFLAGS_PRIVATE}")
2338  endif()
2339  if(BUILD_STATIC_LIBS)
2340    set(ENABLE_STATIC       "yes")
2341  else()
2342    set(ENABLE_STATIC       "no")
2343  endif()
2344
2345  # Generate a "curl-config" matching this config.
2346  # Consumed variables:
2347  #   CC
2348  #   CONFIGURE_OPTIONS
2349  #   CURLVERSION
2350  #   CURL_CA_BUNDLE
2351  #   ENABLE_SHARED
2352  #   ENABLE_STATIC
2353  #   exec_prefix
2354  #   includedir
2355  #   LIBCURL_PC_CFLAGS
2356  #   LIBCURL_PC_LDFLAGS_PRIVATE
2357  #   LIBCURL_PC_LIBS_PRIVATE
2358  #   libdir
2359  #   libext
2360  #   prefix
2361  #   SSL_BACKENDS
2362  #   SUPPORT_FEATURES
2363  #   SUPPORT_PROTOCOLS
2364  #   VERSIONNUM
2365  configure_file(
2366    "${PROJECT_SOURCE_DIR}/curl-config.in"
2367    "${PROJECT_BINARY_DIR}/curl-config" @ONLY)
2368  install(FILES "${PROJECT_BINARY_DIR}/curl-config"
2369    DESTINATION ${CMAKE_INSTALL_BINDIR}
2370    PERMISSIONS
2371      OWNER_READ OWNER_WRITE OWNER_EXECUTE
2372      GROUP_READ GROUP_EXECUTE
2373      WORLD_READ WORLD_EXECUTE)
2374
2375  # Generate a pkg-config file matching this config.
2376  # Consumed variables:
2377  #   CURLVERSION
2378  #   exec_prefix
2379  #   includedir
2380  #   LIBCURL_PC_CFLAGS
2381  #   LIBCURL_PC_CFLAGS_PRIVATE
2382  #   LIBCURL_PC_LDFLAGS_PRIVATE
2383  #   LIBCURL_PC_LIBS
2384  #   LIBCURL_PC_LIBS_PRIVATE
2385  #   LIBCURL_PC_REQUIRES
2386  #   LIBCURL_PC_REQUIRES_PRIVATE
2387  #   libdir
2388  #   prefix
2389  #   SUPPORT_FEATURES
2390  #   SUPPORT_PROTOCOLS
2391  # Documentation:
2392  #   https://people.freedesktop.org/~dbn/pkg-config-guide.html
2393  #   https://manpages.debian.org/unstable/pkgconf/pkg-config.1.en.html
2394  #   https://manpages.debian.org/unstable/pkg-config/pkg-config.1.en.html
2395  #   https://www.msys2.org/docs/pkgconfig/
2396  configure_file(
2397    "${PROJECT_SOURCE_DIR}/libcurl.pc.in"
2398    "${PROJECT_BINARY_DIR}/libcurl.pc" @ONLY)
2399  install(FILES "${PROJECT_BINARY_DIR}/libcurl.pc"
2400    DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
2401
2402  # Install headers
2403  install(DIRECTORY "${PROJECT_SOURCE_DIR}/include/curl"
2404    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
2405    FILES_MATCHING PATTERN "*.h")
2406
2407  include(CMakePackageConfigHelpers)
2408  write_basic_package_version_file(
2409    "${_version_config}"
2410    VERSION ${_curl_version}
2411    COMPATIBILITY SameMajorVersion)
2412  file(READ "${_version_config}" _generated_version_config)
2413  file(WRITE "${_version_config}" "
2414    if(NOT PACKAGE_FIND_VERSION_RANGE AND PACKAGE_FIND_VERSION_MAJOR STREQUAL \"7\")
2415      # Version 8 satisfies version 7... requirements
2416      set(PACKAGE_FIND_VERSION_MAJOR 8)
2417      set(PACKAGE_FIND_VERSION_COUNT 1)
2418    endif()
2419    ${_generated_version_config}")
2420
2421  # Consumed custom variables:
2422  #   CURLVERSION
2423  #   LIB_SELECTED
2424  #   TARGETS_EXPORT_NAME
2425  #   USE_OPENSSL OPENSSL_VERSION_MAJOR
2426  #   HAVE_LIBZ ZLIB_VERSION_MAJOR
2427  #   CURL_SUPPORTED_FEATURES_LIST
2428  #   CURL_SUPPORTED_PROTOCOLS_LIST
2429  configure_package_config_file("CMake/curl-config.cmake.in"
2430    "${_project_config}"
2431    INSTALL_DESTINATION ${_install_cmake_dir}
2432    PATH_VARS CMAKE_INSTALL_INCLUDEDIR)
2433
2434  if(CURL_ENABLE_EXPORT_TARGET)
2435    install(EXPORT "${TARGETS_EXPORT_NAME}"
2436      NAMESPACE "${PROJECT_NAME}::"
2437      DESTINATION ${_install_cmake_dir})
2438  endif()
2439
2440  install(FILES ${_version_config} ${_project_config}
2441    DESTINATION ${_install_cmake_dir})
2442
2443  if(NOT TARGET curl_uninstall)
2444    configure_file(
2445      "${CMAKE_CURRENT_SOURCE_DIR}/CMake/cmake_uninstall.cmake.in"
2446      "${CMAKE_CURRENT_BINARY_DIR}/CMake/cmake_uninstall.cmake"
2447      @ONLY)
2448
2449    add_custom_target(curl_uninstall
2450      COMMAND ${CMAKE_COMMAND} -P "${CMAKE_CURRENT_BINARY_DIR}/CMake/cmake_uninstall.cmake")
2451  endif()
2452
2453  install(FILES "${PROJECT_SOURCE_DIR}/scripts/mk-ca-bundle.pl"
2454    DESTINATION ${CMAKE_INSTALL_BINDIR}
2455    PERMISSIONS
2456      OWNER_READ OWNER_WRITE OWNER_EXECUTE
2457      GROUP_READ GROUP_EXECUTE
2458      WORLD_READ WORLD_EXECUTE)
2459
2460  # The `-DEV` part is important
2461  string(REGEX REPLACE "([0-9]+\.[0-9]+)\.([0-9]+.*)" "\\2" CPACK_PACKAGE_VERSION_PATCH "${_curl_version}")
2462  set(CPACK_GENERATOR "TGZ")
2463  include(CPack)
2464endif()
2465
2466# Save build info for test runner to pick up and log
2467if(CMAKE_OSX_SYSROOT)
2468  set(_cmake_sysroot ${CMAKE_OSX_SYSROOT})
2469elseif(CMAKE_SYSROOT)
2470  set(_cmake_sysroot ${CMAKE_SYSROOT})
2471endif()
2472set(_buildinfo "\
2473buildinfo.configure.tool: cmake
2474buildinfo.configure.command: ${CMAKE_COMMAND}
2475buildinfo.configure.version: ${CMAKE_VERSION}
2476buildinfo.configure.args:${_cmake_args}
2477buildinfo.configure.generator: ${CMAKE_GENERATOR}
2478buildinfo.configure.make: ${CMAKE_MAKE_PROGRAM}
2479buildinfo.host.cpu: ${CMAKE_HOST_SYSTEM_PROCESSOR}
2480buildinfo.host.os: ${CMAKE_HOST_SYSTEM_NAME}
2481buildinfo.target.cpu: ${CMAKE_SYSTEM_PROCESSOR}
2482buildinfo.target.os: ${CMAKE_SYSTEM_NAME}
2483buildinfo.target.flags:${_target_flags}
2484buildinfo.compiler: ${CMAKE_C_COMPILER_ID}
2485buildinfo.compiler.version: ${CMAKE_C_COMPILER_VERSION}
2486buildinfo.sysroot: ${_cmake_sysroot}
2487")
2488file(WRITE "${PROJECT_BINARY_DIR}/buildinfo.txt" "# This is a generated file.  Do not edit.\n${_buildinfo}")
2489if(NOT "$ENV{CURL_BUILDINFO}$ENV{CURL_CI}$ENV{CI}" STREQUAL "")
2490  message(STATUS "\n${_buildinfo}")
2491endif()
2492